package 课堂代码; public class Test7 { //写一个方法,求任意int数组所有元素的和,并返回 public static void main(String[] args) { int [] arr1 = {1,2,3,4,5}; int sum1 = getSum(arr1); System.out.println("arr1数组中的所有元素的和为:"+sum1); System.out.println("---------------------"); int [] arr2 = {10,20,30,40,50}; int sum2 = getSum(arr2); System.out.println("arr2数组中的所有元素的和为:"+sum2); } public static int getSum(int[]arr ){ int sum = 0; for (int i = 0; i < arr.length; i++) { sum+=arr[i]; } return sum; } }