提示：您可在线编辑运行本教程的实例 - 运行实例，去试试！
将两个整数数组的值逐元素相加。
//package com.nowjava; /*时代Java - N o w J a v a . c o m 提 供*/ public class Main { public static void main(String[] argv) throws Exception { int[] a = new int[] { 34, 35, 36, 37, 37, 37, 67, 68, 69 }; int[] b = new int[] { 34, 35, 36, 37, 37, 37, 67, 68, 69 }; System.out.println(java.util.Arrays.toString(addElementwise(a, b))); } /** * Adds up the values in the two arrays of integers element-wise. * * @param a Array of integers. * @param b Array of integers. * @return Element-wise sum of arrays. * @throws ArithmeticException Throws an exception when the arrays differ in * length. */ public static int[] addElementwise(int[] a, int[] b) throws ArithmeticException {/** 时 代 J a v a 公 众 号 - nowjava.com 提供 **/ if (a.length != b.length) { throw new ArithmeticException(); } else { int[] result = new int[a.length]; for (int i = 0; i < a.length; i++) { result[i] = a[i] + b[i]; } return result; } } /** * Adds up the values in the two arrays of doubles element-wise. * * @param a Array of doubles. * @param b Array of doubles. * @return Element-wise sum of arrays. * @throws ArithmeticException Throws an exception when the arrays differ in * length. */ public static double[] addElementwise(double[] a, double[] b) throws ArithmeticException { if (a.length != b.length) { throw new ArithmeticException(); } else { double[] result = new double[a.length]; for (int i = 0; i < a.length; i++) { result[i] = a[i] + b[i]; } return result; } } /** * Adds up the values in the two arrays of longs element-wise. * * @param a Array of longs. * @param b Array of longs. * @return Element-wise sum of arrays. * @throws ArithmeticException Throws an exception when the arrays differ in * length. */ public static long[] addElementwise(long[] a, long[] b) throws ArithmeticException { if (a.length != b.length) { throw new ArithmeticException(); } else { long[] result = new long[a.length]; for (int i = 0; i < a.length; i++) { result[i] = a[i] + b[i]; } return result; } } /** * Adds up the values in the two arrays of floats element-wise. * * @param a Array of floats. * @param b Array of floats. * @return Element-wise sum of arrays. * @throws ArithmeticException Throws an exception when the arrays differ in * length. */ public static float[] addElementwise(float[] a, float[] b) throws ArithmeticException { if (a.length != b.length) { throw new ArithmeticException(); } else { float[] result = new float[a.length]; for (int i = 0; i < a.length; i++) { result[i] = a[i] + b[i]; } return result; } } /** * Adds up the values in the two arrays of bytes element-wise. * * @param a Array of bytes. * @param b Array of bytes. * @return Element-wise sum of arrays. * @throws ArithmeticException Throws an exception when the arrays differ in * length. */ public static byte[] addElementwise(byte[] a, byte[] b) throws ArithmeticException { if (a.length != b.length) { throw new ArithmeticException(); } else { byte[] result = new byte[a.length]; for (int i = 0; i < a.length; i++) { result[i] = (byte) (a[i] + b[i]); } return result; } } /** * Adds up the values in an array of doubles and an array of integers * element-wise. * * @param a Array of doubles. * @param b Array of integers. * @return Element-wise sum of arrays. * @throws ArithmeticException Throws an exception when the arrays differ in * length. */ public static double[] addElementwise(double[] a, int[] b) throws ArithmeticException { if (a.length != b.length) { throw new ArithmeticException(); } else { double[] result = new double[a.length]; for (int i = 0; i < a.length; i++) { result[i] = a[i] + b[i]; } return result; } } /** * Adds up two matrices of doubles element-wise. * * @param a Matrix of doubles. * @param b Matrix of doubles. * @return Element-wise sum of the two matrices. * @throws ArithmeticException Throws an exception when the two matrices are * not of the same size. */ public static double[][] addElementwise(double[][] a, double[][] b) throws ArithmeticException { if (a.length != b.length || a[0].length != b[0].length) { throw new ArithmeticException(); } else { double[][] result = new double[a.length][a[0].length]; for (int i = 0; i < a.length; i++) { for (int j = 0; j < a[0].length; j++) { result[i][j] = a[i][j] + b[i][j]; } } return result; } } /** * Adds up two matrices of doubles and integers element-wise. * * @param a Matrix of doubles. * @param b Matrix of integers. * @return Element-wise sum of the two matrices. * @throws ArithmeticException Throws an exception when the two matrices are * not of the same size. */ public static double[][] addElementwise(double[][] a, int[][] b) throws ArithmeticException { if (a.length != b.length || a[0].length != b[0].length) { throw new ArithmeticException(); } else { double[][] result = new double[a.length][a[0].length]; for (int i = 0; i < a.length; i++) { for (int j = 0; j < a[0].length; j++) { result[i][j] = a[i][j] + b[i][j]; } } return result; } } /** * Adds up two matrices of integers element-wise. * * @param a Matrix of integers. * @param b Matrix of integers. * @return Element-wise sum of the two matrices. * @throws ArithmeticException Throws an exception when the two matrices are * not of the same size. */ public static int[][] addElementwise(int[][] a, int[][] b) throws ArithmeticException { if (a.length != b.length || a[0].length != b[0].length) { throw new ArithmeticException(); } else { int[][] result = new int[a.length][a[0].length]; for (int i = 0; i < a.length; i++) { for (int j = 0; j < a[0].length; j++) { result[i][j] = a[i][j] + b[i][j]; } } return result; } } /** * Adds up two matrices of doubles element-wise. * * @param a Matrix of doubles. * @param b Matrix of doubles. * @return Element-wise sum of the two matrices. * @throws ArithmeticException Throws an exception when the two matrices are * not of the same size. */ public static float[][] addElementwise(float[][] a, float[][] b) throws ArithmeticException { if (a.length != b.length || a[0].length != b[0].length) { throw new ArithmeticException(); } else { float[][] result = new float[a.length][a[0].length]; for (int i = 0; i < a.length; i++) { for (int j = 0; j < a[0].length; j++) { result[i][j] = a[i][j] + b[i][j]; } } return result; } } /** * Adds up two matrices of longs element-wise. * * @param a Matrix of longs. * @param b Matrix of longs. * @return Element-wise sum of the two matrices. * @throws ArithmeticException Throws an exception when the two matrices are * not of the same size. */