java if,if...else...的应用

import java.util.Scanner;
public class Dome1{public static void main (String []args ){Scanner input = new Scanner (System.in );int day =0;System.out.print("请输入1~7整数:");day = input.nextInt();if(day==1){System.out.print("星期一");}else if(day==2){System.out.print("星期二");}else if(day==3){System.out.print("星期三");}else if(day==4){System.out.print("星期四");}else if(day==5){System.out.print("星期五");}else if(day==6){System.out.print("星期六");}else if(day==7){System.out.print("星期日");}else{System.out.print("输入整数错误!");}}
}