在Java中,可以使用枚举类型作为Switch语句的条件。以下是一个示例:
public class EnumSwitchExample {
enum Day {
MONDAY, TUESDAY, WEDNESDAY, THURSDAY, FRIDAY, SATURDAY, SUNDAY
}
public static void main(String[] args) {
Day day = Day.MONDAY;
switch (day) {
case MONDAY:
System.out.println("It's Monday!");
break;
case TUESDAY:
System.out.println("It's Tuesday!");
break;
case WEDNESDAY:
System.out.println("It's Wednesday!");
break;
case THURSDAY:
System.out.println("It's Thursday!");
break;
case FRIDAY:
System.out.println("It's Friday!");
break;
case SATURDAY:
System.out.println("It's Saturday!");
break;
case SUNDAY:
System.out.println("It's Sunday!");
break;
default:
System.out.println("Invalid day!");
break;
}
}
}
在这个示例中,我们定义了一个Day枚举类型,并在Switch语句中使用它来判断当前是星期几。通过将枚举类型作为Switch语句的条件,可以使代码更加清晰和易读,同时避免了使用多个if-else语句。