case 3:
days = 31;
break;
case 4:
days = 30;
break;
case 5:
days = 31;
break;
case 6:
days = 30;
break;
case 7:
days = 31;
break;
case 8:
days = 31;
break;
case 9:
days = 30;
break;
case 10:
days = 31;
break;
case 11:
days = 30;
break;
case 12:
days = 31;
break;
}
System.out.println(days);
根据 switch 语句的语法,该代码也可以简化为如下格式:
int month = 10;
int days = 0;
switch(month){
case 2:
days = 28;
break;
case 4:
case 6:
case 9: