java基础练习 10

Posted 2020-08-28 ???!!!

import java.util.Scanner;
public class Tenth {
	/*有n个整数，使其前面各数顺序向后移m个位置，最后m个数变成最前面的m个数*/
	public static void main(String[] args){
		Scanner input=new Scanner(System.in);
		
		System.out.println("您将输入的数字个数为:");
		int a=input.nextInt();
		int[] array=new int[a];
		
		int t,i;
		System.out.println("您要交换的数字个数为:");
		int b=input.nextInt();
		System.out.println("请输入数组:");
		for(i=0;i<a;i++)
			array[i]=input.nextInt();
		System.out.println("交换之前数组为:");
		for(i=0;i<a;i++)
			System.out.print(array[i]+" ");
		for(i=0;i<b;i++){
			t=array[i];
			array[i]=array[array.length-b+i];
			array[array.length-b+i]=t;
		}
		System.out.println("\n"+"交换之后数组为:");
		for(i=0;i<a;i++)
			System.out.print(array[i]+" ");
		
	}

}