浅谈J2SE 枚举类型
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2022-04-24 11:12:27
...
public enum Week {
MON, TUE, WED, THU, FRI, SAT, SUN
}
MON, TUE, WED, THU, FRI, SAT, SUN
}
测试:
public class TestEnum {
/**
* @param args
*/
public static void main(String[] args) {
new TestEnum().work(Week.SUN);
System.out.println("*****************************");
System.out.println("得到Week枚举类型中每个常量的常量值");
System.out.println(Week.MON.ordinal());
System.out.println(Week.TUE.ordinal());
System.out.println(Week.WED.ordinal());
System.out.println(Week.THU.ordinal());
System.out.println(Week.FRI.ordinal());
System.out.println(Week.SAT.ordinal());
System.out.println(Week.SUN.ordinal());
System.out.println("*****************************");
new TestEnum().workSwitch(Week.FRI);
}
public void work(Week day) {
if (day.equals(Week.SAT)) {
System.out.println("Go shopping!");
} else if (day.equals(Week.SUN)) {
System.out.println("Have a Rest");
} else {
System.out.println("Work");
}
}
public void workSwitch(Week day) {
switch (day) {
case MON:
case TUE:
case WED:
case THU:
case FRI:
System.out.println("大家辛苦了,请努力工作!");
break;
case SAT:
System.out.println("星期六,一起去购物!");
break;
case SUN:
System.out.println("星期天,大家休息!");
break;
default:
System.out.println("搞错了!");
break;
}
}
}
运行效果:
Have a Rest
*****************************
得到Week枚举类型中每个常量的常量值
0
1
2
3
4
5
6
*****************************
大家辛苦了,请努力工作!
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