java.lang.Enum 枚举类型

来源：互联网发布：linux c 线程同步机制编辑：程序博客网时间：2024/05/18 01:25

DEMO ONE:

public class TestEnum {

public static void main(String[] args) {

        // 此处，Mycolor的前面必须加上其所在的类的类名！
        Test.MyColor m = Test.MyColor.red;
        switch(m) {
           case red:
           System.out.println("red");
           break;
          case green:
            System.out.println("green");
            break;
            default:
            System.out.println("default");
      }

System.out.println(m);

}

class Test {

public enum MyColor { red, green, blue };

}

DEMO TWO:

public class TestEnum2 {
public enum MyColor { red, green, blue };

    public static void main(String[] args) {
    // 此处，MyColor前的TestEnum省略了,例如：TestEnum.MyColor m = TestEnum.MyColor.red;等也可以
    MyColor m = MyColor.red;
    switch(m) {
       case red:
        System.out.println("red");
        break;
        case green:
        System.out.println("green");
        break;
        default:
        System.out.println("default");

}
System.out.println(m);

}