3.1.通过下标删除数组的元素

package study;

import java.util.Scanner;

public class Main {
	public static int delete(int[] a,int n) {
		Scanner e = new Scanner(System.in);		
		System.out.println("输入你要删除的下标,从0开始");
		int m = e.nextInt();
		for(int i = m;i<n-1;i++) {
			a[i]=a[i+1];
			n--;
		}
		return n;
	}
	
	public static void main(String[] args) {
		Scanner e = new Scanner(System.in);
		System.out.println("输入是数组长度");
		int n = e.nextInt();
		int[] a = new int[n];
		System.out.println("请输入数组的值");
		for(int i = 0;i<n;i++) {
			a[i] = e.nextInt();
		}
		//在此处可加入循环变成多次删除
		n = delete(a,n);
		System.out.println(n);
		for(int i = 0;i<n;i++) {
			System.out.print(a[i]+" ");
		}
	}
}