java-枚举类的使用

public enum MyEnum {ONE("一"),TWO("二"),THREE("三");private final String  myNum;MyEnum(String myNum) {this.myNum = myNum;}public String getMyEnum() {return  myNum;}
}

调用

 MyEnum num = MyEnum.ONE;
System.err.println(num.getMyEnum());

key，value用法

public enum MyEnum {ONE("一","我是一"),TWO("二","我是二"),THREE("三","我是三");private final String  key;private final String  value;MyEnum(String key,String value) {this.key = key;this.value = value;}public String getKey() {return  key;}public String getValue() {return  value;}
}

调用

 MyEnum num = MyEnum.ONE;System.err.println(num.getKey());System.err.println(num.getValue());