逆序，清零

package javadome3;

import java.util.Arrays;

public class Text111 {

	public static void main(String[] args) {
		int arr[] = new int []{1,2,-1,5,-6};
		System.out.println("原陣列");
		for(int n : arr){
			System.out.print(n+" ");
		}
	System.out.println();
	System.out.println("hou");
		for
 
(int i = arr.length-1;i >= 0;i--){
			int j = 0;
			if(arr[i] < 0 ){
				arr[i] = j ;
			}
			System.out.print(arr[i]+" ");
		}
	}

}