注解 & 异常 & 枚举-code

Posted 2021-03-05 macro-renzhansheng

注解

异常

枚举

//定义枚举类

public enum SEX_PERSON {
    //Enum;
    MALE(0){
        public boolean isValue0(){
            return true;
        }
        public boolean isValue1(){
            return false;
        }
    },FEMALE(1){
        public boolean isValue0(){
            return false;
        }
        public boolean isValue1(){
            return true;
        }
    };
    private int i;
    SEX_PERSON(int i) {
        this.i = i;
    }
    public int getValue(){
        return this.i;
    }
    /*public void setValue(int i){
        this.i = i;
    }*/
    public boolean isValue0(){
        return true;
    }
    public boolean isValue1(){
        return true;
    }
}

//使用方式

System.out.println(SEX_PERSON.FEMALE.isValue0());
System.out.println(SEX_PERSON.FEMALE.isValue1());
System.out.println(SEX_PERSON.MALE.isValue0());
System.out.println(SEX_PERSON.MALE.isValue1());