package com.hhx01;
//导包
import java.util.Scanner;
public class Week {
public static void main(String[] args) {
//2.创建对象
Scanner scan = new Scanner(System.in);
//3.接受用户输入的数据
System.out.println("请您输入一个1到7之间的整数: ");
int number = scan.nextInt();
switch (number) {
case 1:
System.out.println("今天是周一");
break;
case 2:
System.out.println("今天是周二");
break;
case 3:
System.out.println("今天是周三");
break;
case 4:
System.out.println("今天是周四");
break;
case 5:
System.out.println("今天是周五");
break;
case 6:
System.out.println("今天是周六");
break;
case 7:
System.out.println("今天是周七");
break;
default:
System.out.println("请输入合理数字");
}
}
}
2.先输入一个年份，然后输入一个月份，判断该年该月有多少天
package com.hhx01;
//导包
import java.util.Scanner;
public class Year_Month {
public static void main(String[] args) {
//创建对象
Scanner sc = new Scanner(System.in);
//接受用户数据：
System.out.println("请输入年份");
int year = sc.nextInt();
System.out.println("请输入月份");
int month = sc.nextInt();
//使用switch判断某年某月的天数
switch (month) {
case 1:
case 3:
case 5:
case 7:
case 8:
case 10:
case 12:
System.out.println(year+"年"+month+"月"+31+"天");
break;
case 4:
case 6:
case 9:
case 11:
System.out.println(year+"年"+month+"月"+30+"天");
break;
case 2:
if (year % 4 == 0 && year % 100 != 0 || year % 400 == 0){
System.out.println(year+"年"+month+"月"+29+"天");
} else{
System.out.println(year+"年"+month+"月"+28+"天");
}
