java数组如何遍历全部的元素

public class ArrayTest01 {

public static void main(String[] args) {

int[] arr = { 1, 2, 3, 4, 5 };

System.out.println(arr[0]);

System.out.println(arr[1]);

System.out.println(arr[2]);

System.out.println(arr[3]);

System.out.println(arr[4]);

}

}