Java 获取数组中每个组件的绝对值。
获取数组中每个组件的绝对值。
实例源码：
源代码：
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/*来 自 时代Java - nowjava.com*/2
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//package com.nowjava;5
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public class Main {8
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public static void main(String[] argv) throws Exception {10
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double[] v = new double[] { 34.45, 35.45, 36.67, 37.78, 37.0000,12
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37.1234, 67.2344, 68.34534, 69.87700 };14
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System.out.println(java.util.Arrays.toString(abs(v)));16
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}18
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/**21
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* Takes the absolute value of each component of an array.23
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*/25
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public static double[] abs(double[] v) {27
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double[] ans = new double[v.length];29
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for (int i = 0; i < v.length; i++) {31
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ans[i] = Math.abs(v[i]);33
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}35
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return (ans);37
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}39
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/**42
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* Takes the absolute value of each component of an array.44
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*/46
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public static double[][] abs(double[][] v) {48
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double[][] ans = new double[v.length][];50
/*来自 51
N o w J a v a . c o m*/52
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for (int i = 0; i < v.length; i++) {54
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ans[i] = abs(v[i]);56
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}58
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return (ans);60
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}62
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/**65
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* Takes the absolute value of each component of an array.67
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*/69
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public static int[] abs(int[] v) {71
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int[] ans = new int[v.length];73
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for (int i = 0; i < v.length; i++) {75
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ans[i] = Math.abs(v[i]);77
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}79
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return (ans);81
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}83
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/**86
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* Takes the absolute value of each component of an array.88
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*/90
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public static int[][] abs(int[][] v) {92
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int[][] ans = new int[v.length][];94
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for (int i = 0; i < v.length; i++) {96
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ans[i] = abs(v[i]);98
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}100
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return (ans);102
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}104
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/**107
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* Returns a comma delimited string representing the value of the array.109
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*/111
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public static String toString(double[] array) {113
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StringBuffer buf = new StringBuffer(array.length);116
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int i;118
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for (i = 0; i < array.length - 1; i++) {120
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buf.append(array[i]);122
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buf.append(',');124
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}126
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buf.append(array[i]);128
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return buf.toString();130
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}132
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/**135
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* Returns a comma delimited string representing the value of the array.137
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*/139
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public static String toString(double[][] array) {141
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StringBuffer buf = new StringBuffer();143
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for (int k = 0; k < array.length; k++) {145
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buf.append(toString(array[k]));147
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buf.append(System.getProperty("line.separator"));149
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}151
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return buf.toString();153
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}155
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/**158
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* Returns a comma delimited string representing the value of the array.160
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*/162
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public static String toString(int[] array) {164
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StringBuffer buf = new StringBuffer(array.length);166
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int i;168
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for (i = 0; i < array.length - 1; i++) {170
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buf.append(array[i]);172
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buf.append(',');174
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