1bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor/* 21d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * Copyright (C) 2008 The Guava Authors 3bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * 4bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * Licensed under the Apache License, Version 2.0 (the "License"); 5bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * you may not use this file except in compliance with the License. 6bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * You may obtain a copy of the License at 7bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * 8bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * http://www.apache.org/licenses/LICENSE-2.0 9bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * 10bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * Unless required by applicable law or agreed to in writing, software 11bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * distributed under the License is distributed on an "AS IS" BASIS, 12bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * See the License for the specific language governing permissions and 14bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * limitations under the License. 15bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor */ 16bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor 17bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnorpackage com.google.common.primitives; 18bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor 191d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringertimport static com.google.common.base.Preconditions.checkArgument; 201d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringertimport static com.google.common.base.Preconditions.checkElementIndex; 211d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringertimport static com.google.common.base.Preconditions.checkNotNull; 221d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringertimport static com.google.common.base.Preconditions.checkPositionIndexes; 231d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 240888a09821a98ac0680fad765217302858e70fa4Paul Duffinimport com.google.common.annotations.Beta; 25bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnorimport com.google.common.annotations.GwtCompatible; 26bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnorimport com.google.common.annotations.GwtIncompatible; 270888a09821a98ac0680fad765217302858e70fa4Paul Duffinimport com.google.common.base.Converter; 28bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor 29bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnorimport java.io.Serializable; 30bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnorimport java.util.AbstractList; 31bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnorimport java.util.Arrays; 32bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnorimport java.util.Collection; 33bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnorimport java.util.Collections; 34bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnorimport java.util.Comparator; 35bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnorimport java.util.List; 36bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnorimport java.util.RandomAccess; 37bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor 38bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor/** 39bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * Static utility methods pertaining to {@code short} primitives, that are not 40bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * already found in either {@link Short} or {@link Arrays}. 41bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * 427dd252788645e940eada959bdde927426e2531c9Paul Duffin * <p>See the Guava User Guide article on <a href= 437dd252788645e940eada959bdde927426e2531c9Paul Duffin * "http://code.google.com/p/guava-libraries/wiki/PrimitivesExplained"> 447dd252788645e940eada959bdde927426e2531c9Paul Duffin * primitive utilities</a>. 457dd252788645e940eada959bdde927426e2531c9Paul Duffin * 46bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * @author Kevin Bourrillion 471d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * @since 1.0 48bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor */ 491d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert@GwtCompatible(emulated = true) 50bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnorpublic final class Shorts { 51bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor private Shorts() {} 52bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor 53bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor /** 54bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * The number of bytes required to represent a primitive {@code short} 55bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * value. 56bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor */ 57bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor public static final int BYTES = Short.SIZE / Byte.SIZE; 58bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor 59bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor /** 601d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * The largest power of two that can be represented as a {@code short}. 611d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * 621d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * @since 10.0 631d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert */ 641d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public static final short MAX_POWER_OF_TWO = 1 << (Short.SIZE - 2); 651d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 661d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert /** 67bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * Returns a hash code for {@code value}; equal to the result of invoking 68bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * {@code ((Short) value).hashCode()}. 69bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * 70bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * @param value a primitive {@code short} value 71bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * @return a hash code for the value 72bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor */ 73bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor public static int hashCode(short value) { 74bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor return value; 75bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 76bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor 77bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor /** 781d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * Returns the {@code short} value that is equal to {@code value}, if 791d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * possible. 80bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * 81bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * @param value any value in the range of the {@code short} type 82bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * @return the {@code short} value that equals {@code value} 83bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * @throws IllegalArgumentException if {@code value} is greater than {@link 84bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * Short#MAX_VALUE} or less than {@link Short#MIN_VALUE} 85bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor */ 86bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor public static short checkedCast(long value) { 87bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor short result = (short) value; 880888a09821a98ac0680fad765217302858e70fa4Paul Duffin if (result != value) { 890888a09821a98ac0680fad765217302858e70fa4Paul Duffin // don't use checkArgument here, to avoid boxing 900888a09821a98ac0680fad765217302858e70fa4Paul Duffin throw new IllegalArgumentException("Out of range: " + value); 910888a09821a98ac0680fad765217302858e70fa4Paul Duffin } 92bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor return result; 93bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 94bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor 95bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor /** 96bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * Returns the {@code short} nearest in value to {@code value}. 97bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * 98bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * @param value any {@code long} value 99bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * @return the same value cast to {@code short} if it is in the range of the 100bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * {@code short} type, {@link Short#MAX_VALUE} if it is too large, 101bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * or {@link Short#MIN_VALUE} if it is too small 102bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor */ 103bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor public static short saturatedCast(long value) { 104bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor if (value > Short.MAX_VALUE) { 105bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor return Short.MAX_VALUE; 106bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 107bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor if (value < Short.MIN_VALUE) { 108bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor return Short.MIN_VALUE; 109bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 110bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor return (short) value; 111bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 112bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor 113bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor /** 114bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * Compares the two specified {@code short} values. The sign of the value 115bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * returned is the same as that of {@code ((Short) a).compareTo(b)}. 116bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * 1170888a09821a98ac0680fad765217302858e70fa4Paul Duffin * <p><b>Note:</b> projects using JDK 7 or later should use the equivalent 1180888a09821a98ac0680fad765217302858e70fa4Paul Duffin * {@link Short#compare} method instead. 1190888a09821a98ac0680fad765217302858e70fa4Paul Duffin * 120bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * @param a the first {@code short} to compare 121bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * @param b the second {@code short} to compare 122bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * @return a negative value if {@code a} is less than {@code b}; a positive 123bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * value if {@code a} is greater than {@code b}; or zero if they are equal 124bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor */ 125bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor public static int compare(short a, short b) { 126bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor return a - b; // safe due to restricted range 127bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 128bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor 129bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor /** 130bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * Returns {@code true} if {@code target} is present as an element anywhere in 131bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * {@code array}. 132bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * 133bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * @param array an array of {@code short} values, possibly empty 134bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * @param target a primitive {@code short} value 135bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * @return {@code true} if {@code array[i] == target} for some value of {@code 136bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * i} 137bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor */ 138bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor public static boolean contains(short[] array, short target) { 139bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor for (short value : array) { 140bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor if (value == target) { 141bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor return true; 142bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 143bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 144bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor return false; 145bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 146bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor 147bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor /** 148bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * Returns the index of the first appearance of the value {@code target} in 149bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * {@code array}. 150bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * 151bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * @param array an array of {@code short} values, possibly empty 152bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * @param target a primitive {@code short} value 153bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * @return the least index {@code i} for which {@code array[i] == target}, or 154bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * {@code -1} if no such index exists. 155bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor */ 156bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor public static int indexOf(short[] array, short target) { 157bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor return indexOf(array, target, 0, array.length); 158bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 159bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor 1601d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert // TODO(kevinb): consider making this public 1610888a09821a98ac0680fad765217302858e70fa4Paul Duffin private static int indexOf( 1620888a09821a98ac0680fad765217302858e70fa4Paul Duffin short[] array, short target, int start, int end) { 163bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor for (int i = start; i < end; i++) { 164bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor if (array[i] == target) { 165bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor return i; 166bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 167bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 168bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor return -1; 169bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 170bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor 171bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor /** 172bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * Returns the start position of the first occurrence of the specified {@code 173bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * target} within {@code array}, or {@code -1} if there is no such occurrence. 174bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * 175bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * <p>More formally, returns the lowest index {@code i} such that {@code 176bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * java.util.Arrays.copyOfRange(array, i, i + target.length)} contains exactly 177bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * the same elements as {@code target}. 178bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * 179bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * @param array the array to search for the sequence {@code target} 180bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * @param target the array to search for as a sub-sequence of {@code array} 181bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor */ 182bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor public static int indexOf(short[] array, short[] target) { 183bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor checkNotNull(array, "array"); 184bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor checkNotNull(target, "target"); 185bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor if (target.length == 0) { 186bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor return 0; 187bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 188bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor 1890888a09821a98ac0680fad765217302858e70fa4Paul Duffin outer: 1900888a09821a98ac0680fad765217302858e70fa4Paul Duffin for (int i = 0; i < array.length - target.length + 1; i++) { 191bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor for (int j = 0; j < target.length; j++) { 192bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor if (array[i + j] != target[j]) { 193bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor continue outer; 194bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 195bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 196bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor return i; 197bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 198bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor return -1; 199bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 200bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor 201bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor /** 202bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * Returns the index of the last appearance of the value {@code target} in 203bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * {@code array}. 204bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * 205bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * @param array an array of {@code short} values, possibly empty 206bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * @param target a primitive {@code short} value 207bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * @return the greatest index {@code i} for which {@code array[i] == target}, 208bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * or {@code -1} if no such index exists. 209bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor */ 210bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor public static int lastIndexOf(short[] array, short target) { 211bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor return lastIndexOf(array, target, 0, array.length); 212bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 213bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor 2141d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert // TODO(kevinb): consider making this public 2150888a09821a98ac0680fad765217302858e70fa4Paul Duffin private static int lastIndexOf( 2160888a09821a98ac0680fad765217302858e70fa4Paul Duffin short[] array, short target, int start, int end) { 217bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor for (int i = end - 1; i >= start; i--) { 218bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor if (array[i] == target) { 219bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor return i; 220bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 221bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 222bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor return -1; 223bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 224bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor 225bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor /** 226bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * Returns the least value present in {@code array}. 227bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * 228bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * @param array a <i>nonempty</i> array of {@code short} values 229bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * @return the value present in {@code array} that is less than or equal to 230bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * every other value in the array 231bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * @throws IllegalArgumentException if {@code array} is empty 232bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor */ 233bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor public static short min(short... array) { 234bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor checkArgument(array.length > 0); 235bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor short min = array[0]; 236bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor for (int i = 1; i < array.length; i++) { 237bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor if (array[i] < min) { 238bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor min = array[i]; 239bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 240bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 241bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor return min; 242bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 243bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor 244bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor /** 245bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * Returns the greatest value present in {@code array}. 246bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * 247bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * @param array a <i>nonempty</i> array of {@code short} values 248bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * @return the value present in {@code array} that is greater than or equal to 249bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * every other value in the array 250bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * @throws IllegalArgumentException if {@code array} is empty 251bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor */ 252bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor public static short max(short... array) { 253bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor checkArgument(array.length > 0); 254bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor short max = array[0]; 255bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor for (int i = 1; i < array.length; i++) { 256bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor if (array[i] > max) { 257bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor max = array[i]; 258bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 259bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 260bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor return max; 261bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 262bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor 263bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor /** 264bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * Returns the values from each provided array combined into a single array. 265bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * For example, {@code concat(new short[] {a, b}, new short[] {}, new 266bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * short[] {c}} returns the array {@code {a, b, c}}. 267bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * 268bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * @param arrays zero or more {@code short} arrays 269bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * @return a single array containing all the values from the source arrays, in 270bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * order 271bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor */ 272bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor public static short[] concat(short[]... arrays) { 273bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor int length = 0; 274bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor for (short[] array : arrays) { 275bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor length += array.length; 276bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 277bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor short[] result = new short[length]; 278bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor int pos = 0; 279bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor for (short[] array : arrays) { 280bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor System.arraycopy(array, 0, result, pos, array.length); 281bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor pos += array.length; 282bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 283bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor return result; 284bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 285bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor 286bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor /** 2871d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * Returns a big-endian representation of {@code value} in a 2-element byte 288bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * array; equivalent to {@code 2891d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * ByteBuffer.allocate(2).putShort(value).array()}. For example, the input 2901d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * value {@code (short) 0x1234} would yield the byte array {@code {0x12, 2911d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * 0x34}}. 292bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * 293bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * <p>If you need to convert and concatenate several values (possibly even of 294bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * different types), use a shared {@link java.nio.ByteBuffer} instance, or use 295bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * {@link com.google.common.io.ByteStreams#newDataOutput()} to get a growable 296bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * buffer. 297bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor */ 298bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor @GwtIncompatible("doesn't work") 299bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor public static byte[] toByteArray(short value) { 3000888a09821a98ac0680fad765217302858e70fa4Paul Duffin return new byte[] { 3010888a09821a98ac0680fad765217302858e70fa4Paul Duffin (byte) (value >> 8), 3020888a09821a98ac0680fad765217302858e70fa4Paul Duffin (byte) value}; 303bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 304bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor 305bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor /** 306bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * Returns the {@code short} value whose big-endian representation is 3071d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * stored in the first 2 bytes of {@code bytes}; equivalent to {@code 308bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * ByteBuffer.wrap(bytes).getShort()}. For example, the input byte array 3091d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * {@code {0x54, 0x32}} would yield the {@code short} value {@code 0x5432}. 310bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * 311bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * <p>Arguably, it's preferable to use {@link java.nio.ByteBuffer}; that 312bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * library exposes much more flexibility at little cost in readability. 313bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * 3141d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * @throws IllegalArgumentException if {@code bytes} has fewer than 2 315bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * elements 316bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor */ 317bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor @GwtIncompatible("doesn't work") 318bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor public static short fromByteArray(byte[] bytes) { 3190888a09821a98ac0680fad765217302858e70fa4Paul Duffin checkArgument(bytes.length >= BYTES, 3200888a09821a98ac0680fad765217302858e70fa4Paul Duffin "array too small: %s < %s", bytes.length, BYTES); 3211d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert return fromBytes(bytes[0], bytes[1]); 3221d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 3231d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 3241d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert /** 3251d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * Returns the {@code short} value whose byte representation is the given 2 3261d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * bytes, in big-endian order; equivalent to {@code Shorts.fromByteArray(new 3271d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * byte[] {b1, b2})}. 3281d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * 3291d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * @since 7.0 3301d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert */ 3311d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert @GwtIncompatible("doesn't work") 3321d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public static short fromBytes(byte b1, byte b2) { 3331d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert return (short) ((b1 << 8) | (b2 & 0xFF)); 334bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 335bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor 3360888a09821a98ac0680fad765217302858e70fa4Paul Duffin private static final class ShortConverter 3370888a09821a98ac0680fad765217302858e70fa4Paul Duffin extends Converter<String, Short> implements Serializable { 3380888a09821a98ac0680fad765217302858e70fa4Paul Duffin static final ShortConverter INSTANCE = new ShortConverter(); 3390888a09821a98ac0680fad765217302858e70fa4Paul Duffin 3400888a09821a98ac0680fad765217302858e70fa4Paul Duffin @Override 3410888a09821a98ac0680fad765217302858e70fa4Paul Duffin protected Short doForward(String value) { 3420888a09821a98ac0680fad765217302858e70fa4Paul Duffin return Short.decode(value); 3430888a09821a98ac0680fad765217302858e70fa4Paul Duffin } 3440888a09821a98ac0680fad765217302858e70fa4Paul Duffin 3450888a09821a98ac0680fad765217302858e70fa4Paul Duffin @Override 3460888a09821a98ac0680fad765217302858e70fa4Paul Duffin protected String doBackward(Short value) { 3470888a09821a98ac0680fad765217302858e70fa4Paul Duffin return value.toString(); 3480888a09821a98ac0680fad765217302858e70fa4Paul Duffin } 3490888a09821a98ac0680fad765217302858e70fa4Paul Duffin 3500888a09821a98ac0680fad765217302858e70fa4Paul Duffin @Override 3510888a09821a98ac0680fad765217302858e70fa4Paul Duffin public String toString() { 3520888a09821a98ac0680fad765217302858e70fa4Paul Duffin return "Shorts.stringConverter()"; 3530888a09821a98ac0680fad765217302858e70fa4Paul Duffin } 3540888a09821a98ac0680fad765217302858e70fa4Paul Duffin 3550888a09821a98ac0680fad765217302858e70fa4Paul Duffin private Object readResolve() { 3560888a09821a98ac0680fad765217302858e70fa4Paul Duffin return INSTANCE; 3570888a09821a98ac0680fad765217302858e70fa4Paul Duffin } 3580888a09821a98ac0680fad765217302858e70fa4Paul Duffin private static final long serialVersionUID = 1; 3590888a09821a98ac0680fad765217302858e70fa4Paul Duffin } 3600888a09821a98ac0680fad765217302858e70fa4Paul Duffin 3610888a09821a98ac0680fad765217302858e70fa4Paul Duffin /** 3620888a09821a98ac0680fad765217302858e70fa4Paul Duffin * Returns a serializable converter object that converts between strings and 3630888a09821a98ac0680fad765217302858e70fa4Paul Duffin * shorts using {@link Short#decode} and {@link Short#toString()}. 3640888a09821a98ac0680fad765217302858e70fa4Paul Duffin * 3650888a09821a98ac0680fad765217302858e70fa4Paul Duffin * @since 16.0 3660888a09821a98ac0680fad765217302858e70fa4Paul Duffin */ 3670888a09821a98ac0680fad765217302858e70fa4Paul Duffin @Beta 3680888a09821a98ac0680fad765217302858e70fa4Paul Duffin public static Converter<String, Short> stringConverter() { 3690888a09821a98ac0680fad765217302858e70fa4Paul Duffin return ShortConverter.INSTANCE; 3700888a09821a98ac0680fad765217302858e70fa4Paul Duffin } 3710888a09821a98ac0680fad765217302858e70fa4Paul Duffin 372bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor /** 373bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * Returns an array containing the same values as {@code array}, but 374bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * guaranteed to be of a specified minimum length. If {@code array} already 375bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * has a length of at least {@code minLength}, it is returned directly. 376bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * Otherwise, a new array of size {@code minLength + padding} is returned, 377bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * containing the values of {@code array}, and zeroes in the remaining places. 378bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * 379bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * @param array the source array 380bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * @param minLength the minimum length the returned array must guarantee 381bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * @param padding an extra amount to "grow" the array by if growth is 382bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * necessary 383bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * @throws IllegalArgumentException if {@code minLength} or {@code padding} is 384bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * negative 385bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * @return an array containing the values of {@code array}, with guaranteed 386bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * minimum length {@code minLength} 387bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor */ 3880888a09821a98ac0680fad765217302858e70fa4Paul Duffin public static short[] ensureCapacity( 3890888a09821a98ac0680fad765217302858e70fa4Paul Duffin short[] array, int minLength, int padding) { 390bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor checkArgument(minLength >= 0, "Invalid minLength: %s", minLength); 391bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor checkArgument(padding >= 0, "Invalid padding: %s", padding); 3920888a09821a98ac0680fad765217302858e70fa4Paul Duffin return (array.length < minLength) 3930888a09821a98ac0680fad765217302858e70fa4Paul Duffin ? copyOf(array, minLength + padding) 3940888a09821a98ac0680fad765217302858e70fa4Paul Duffin : array; 395bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 396bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor 397bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor // Arrays.copyOf() requires Java 6 398bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor private static short[] copyOf(short[] original, int length) { 399bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor short[] copy = new short[length]; 400bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor System.arraycopy(original, 0, copy, 0, Math.min(original.length, length)); 401bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor return copy; 402bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 403bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor 404bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor /** 405bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * Returns a string containing the supplied {@code short} values separated 4061d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * by {@code separator}. For example, {@code join("-", (short) 1, (short) 2, 4071d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * (short) 3)} returns the string {@code "1-2-3"}. 408bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * 409bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * @param separator the text that should appear between consecutive values in 410bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * the resulting string (but not at the start or end) 411bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * @param array an array of {@code short} values, possibly empty 412bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor */ 413bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor public static String join(String separator, short... array) { 414bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor checkNotNull(separator); 415bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor if (array.length == 0) { 416bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor return ""; 417bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 418bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor 419bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor // For pre-sizing a builder, just get the right order of magnitude 420bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor StringBuilder builder = new StringBuilder(array.length * 6); 421bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor builder.append(array[0]); 422bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor for (int i = 1; i < array.length; i++) { 423bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor builder.append(separator).append(array[i]); 424bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 425bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor return builder.toString(); 426bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 427bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor 428bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor /** 429bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * Returns a comparator that compares two {@code short} arrays 430bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * lexicographically. That is, it compares, using {@link 431bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * #compare(short, short)}), the first pair of values that follow any 432bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * common prefix, or when one array is a prefix of the other, treats the 433bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * shorter array as the lesser. For example, {@code [] < [(short) 1] < 434bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * [(short) 1, (short) 2] < [(short) 2]}. 435bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * 436bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * <p>The returned comparator is inconsistent with {@link 437bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * Object#equals(Object)} (since arrays support only identity equality), but 438bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * it is consistent with {@link Arrays#equals(short[], short[])}. 439bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * 440bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * @see <a href="http://en.wikipedia.org/wiki/Lexicographical_order"> 4411d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * Lexicographical order article at Wikipedia</a> 4421d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * @since 2.0 443bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor */ 444bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor public static Comparator<short[]> lexicographicalComparator() { 445bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor return LexicographicalComparator.INSTANCE; 446bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 447bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor 448bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor private enum LexicographicalComparator implements Comparator<short[]> { 449bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor INSTANCE; 450bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor 4510888a09821a98ac0680fad765217302858e70fa4Paul Duffin @Override 452bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor public int compare(short[] left, short[] right) { 453bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor int minLength = Math.min(left.length, right.length); 454bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor for (int i = 0; i < minLength; i++) { 455bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor int result = Shorts.compare(left[i], right[i]); 456bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor if (result != 0) { 457bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor return result; 458bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 459bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 460bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor return left.length - right.length; 461bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 462bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 463bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor 464bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor /** 4657dd252788645e940eada959bdde927426e2531c9Paul Duffin * Returns an array containing each value of {@code collection}, converted to 4667dd252788645e940eada959bdde927426e2531c9Paul Duffin * a {@code short} value in the manner of {@link Number#shortValue}. 467bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * 468bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * <p>Elements are copied from the argument collection as if by {@code 469bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * collection.toArray()}. Calling this method is as thread-safe as calling 470bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * that method. 471bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * 4727dd252788645e940eada959bdde927426e2531c9Paul Duffin * @param collection a collection of {@code Number} instances 473bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * @return an array containing the same values as {@code collection}, in the 474bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * same order, converted to primitives 475bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * @throws NullPointerException if {@code collection} or any of its elements 476bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * is null 4777dd252788645e940eada959bdde927426e2531c9Paul Duffin * @since 1.0 (parameter was {@code Collection<Short>} before 12.0) 478bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor */ 4797dd252788645e940eada959bdde927426e2531c9Paul Duffin public static short[] toArray(Collection<? extends Number> collection) { 480bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor if (collection instanceof ShortArrayAsList) { 481bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor return ((ShortArrayAsList) collection).toShortArray(); 482bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 483bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor 484bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor Object[] boxedArray = collection.toArray(); 485bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor int len = boxedArray.length; 486bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor short[] array = new short[len]; 487bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor for (int i = 0; i < len; i++) { 4881d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert // checkNotNull for GWT (do not optimize) 4897dd252788645e940eada959bdde927426e2531c9Paul Duffin array[i] = ((Number) checkNotNull(boxedArray[i])).shortValue(); 490bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 491bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor return array; 492bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 493bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor 494bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor /** 495bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * Returns a fixed-size list backed by the specified array, similar to {@link 496bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * Arrays#asList(Object[])}. The list supports {@link List#set(int, Object)}, 497bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * but any attempt to set a value to {@code null} will result in a {@link 498bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * NullPointerException}. 499bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * 500bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * <p>The returned list maintains the values, but not the identities, of 501bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * {@code Short} objects written to or read from it. For example, whether 502bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * {@code list.get(0) == list.get(0)} is true for the returned list is 503bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * unspecified. 504bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * 505bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * @param backingArray the array to back the list 506bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor * @return a list view of the array 507bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor */ 508bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor public static List<Short> asList(short... backingArray) { 509bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor if (backingArray.length == 0) { 510bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor return Collections.emptyList(); 511bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 512bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor return new ShortArrayAsList(backingArray); 513bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 514bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor 515bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor @GwtCompatible 5160888a09821a98ac0680fad765217302858e70fa4Paul Duffin private static class ShortArrayAsList extends AbstractList<Short> 5170888a09821a98ac0680fad765217302858e70fa4Paul Duffin implements RandomAccess, Serializable { 518bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor final short[] array; 519bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor final int start; 520bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor final int end; 521bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor 522bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor ShortArrayAsList(short[] array) { 523bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor this(array, 0, array.length); 524bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 525bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor 526bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor ShortArrayAsList(short[] array, int start, int end) { 527bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor this.array = array; 528bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor this.start = start; 529bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor this.end = end; 530bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 531bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor 5320888a09821a98ac0680fad765217302858e70fa4Paul Duffin @Override public int size() { 533bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor return end - start; 534bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 535bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor 5360888a09821a98ac0680fad765217302858e70fa4Paul Duffin @Override public boolean isEmpty() { 537bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor return false; 538bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 539bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor 5400888a09821a98ac0680fad765217302858e70fa4Paul Duffin @Override public Short get(int index) { 541bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor checkElementIndex(index, size()); 542bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor return array[start + index]; 543bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 544bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor 5450888a09821a98ac0680fad765217302858e70fa4Paul Duffin @Override public boolean contains(Object target) { 546bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor // Overridden to prevent a ton of boxing 5470888a09821a98ac0680fad765217302858e70fa4Paul Duffin return (target instanceof Short) 5480888a09821a98ac0680fad765217302858e70fa4Paul Duffin && Shorts.indexOf(array, (Short) target, start, end) != -1; 549bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 550bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor 5510888a09821a98ac0680fad765217302858e70fa4Paul Duffin @Override public int indexOf(Object target) { 552bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor // Overridden to prevent a ton of boxing 553bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor if (target instanceof Short) { 554bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor int i = Shorts.indexOf(array, (Short) target, start, end); 555bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor if (i >= 0) { 556bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor return i - start; 557bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 558bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 559bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor return -1; 560bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 561bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor 5620888a09821a98ac0680fad765217302858e70fa4Paul Duffin @Override public int lastIndexOf(Object target) { 563bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor // Overridden to prevent a ton of boxing 564bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor if (target instanceof Short) { 565bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor int i = Shorts.lastIndexOf(array, (Short) target, start, end); 566bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor if (i >= 0) { 567bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor return i - start; 568bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 569bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 570bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor return -1; 571bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 572bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor 5730888a09821a98ac0680fad765217302858e70fa4Paul Duffin @Override public Short set(int index, Short element) { 574bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor checkElementIndex(index, size()); 575bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor short oldValue = array[start + index]; 5767dd252788645e940eada959bdde927426e2531c9Paul Duffin // checkNotNull for GWT (do not optimize) 5777dd252788645e940eada959bdde927426e2531c9Paul Duffin array[start + index] = checkNotNull(element); 578bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor return oldValue; 579bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 580bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor 5810888a09821a98ac0680fad765217302858e70fa4Paul Duffin @Override public List<Short> subList(int fromIndex, int toIndex) { 582bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor int size = size(); 583bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor checkPositionIndexes(fromIndex, toIndex, size); 584bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor if (fromIndex == toIndex) { 585bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor return Collections.emptyList(); 586bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 587bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor return new ShortArrayAsList(array, start + fromIndex, start + toIndex); 588bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 589bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor 5900888a09821a98ac0680fad765217302858e70fa4Paul Duffin @Override public boolean equals(Object object) { 591bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor if (object == this) { 592bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor return true; 593bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 594bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor if (object instanceof ShortArrayAsList) { 595bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor ShortArrayAsList that = (ShortArrayAsList) object; 596bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor int size = size(); 597bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor if (that.size() != size) { 598bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor return false; 599bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 600bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor for (int i = 0; i < size; i++) { 601bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor if (array[start + i] != that.array[that.start + i]) { 602bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor return false; 603bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 604bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 605bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor return true; 606bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 607bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor return super.equals(object); 608bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 609bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor 6100888a09821a98ac0680fad765217302858e70fa4Paul Duffin @Override public int hashCode() { 611bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor int result = 1; 612bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor for (int i = start; i < end; i++) { 613bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor result = 31 * result + Shorts.hashCode(array[i]); 614bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 615bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor return result; 616bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 617bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor 6180888a09821a98ac0680fad765217302858e70fa4Paul Duffin @Override public String toString() { 619bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor StringBuilder builder = new StringBuilder(size() * 6); 620bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor builder.append('[').append(array[start]); 621bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor for (int i = start + 1; i < end; i++) { 622bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor builder.append(", ").append(array[i]); 623bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 624bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor return builder.append(']').toString(); 625bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 626bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor 627bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor short[] toShortArray() { 6287dd252788645e940eada959bdde927426e2531c9Paul Duffin // Arrays.copyOfRange() is not available under GWT 629bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor int size = size(); 630bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor short[] result = new short[size]; 631bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor System.arraycopy(array, start, result, 0, size); 632bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor return result; 633bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 634bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor 635bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor private static final long serialVersionUID = 0; 636bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor } 637bfe2dd089341dcb4c1fb65a5b6b077ad0ebbf6dcDan Egnor} 638