版权声明:本文为博主原创文章,未经博主允许不得转载。 https://blog.csdn.net/qjt19950610/article/details/79242891
package day2;
public class Testswitch {
public static void main(String args[]){
int week=5;
String str="输入的week是:"+week+"输出的是:";
switch(week){
case 1:
str+="星期一";
break;
case 2:
str+="星期二";
break;
case 3:
str+="星期三";
break;
case 4:
str+="星期四";
break;
case 5:
str+="星期五";
break;
case 6:
str+="星期六";
break;
case 7:
str+="星期日";
break;
default:
str="数字超出了7";
}
System.out.println(str);
}
}
注释:switch(表达式),表达式类型:byte short int char string.每一个case后都要记得break,否则会一直执行到default。博友们可以试下不在程序上改动week值,直接在结果中输入新的week,得到新的结果。