java用while实现对一个数组元素求和

Question

int sum = 0; int[] arr = {56, 12, 53, 66, 96}; for(int i = 0; i < arr.length; i ++){ sum += arr[i]; } System.out.println("数组的和：" + sum); 上述用的for，怎样改成while呢

Answer 1

int i =0; while(i<arr.length){sum+=arr[i];i++}