java数组的for遍历

class ArrayDome
{
public static void main(String[] args)
{
int[] arr = {12,51,12,11}; //顺序遍历
for(int x = 0; x < arr.length; x++)
{
System.out.println(arr[x]);
}//反向遍历
for(int x = arr.length-1; x >= 0; x--)
{
System.out.println(arr[x]);
}}
}