带抽象方法的枚举

package cn.itcast.enumeration2;

import org.junit.Test;
/**
 * jdk 1.5之前都是这么干的
 * @author Tom
 *
 *
 */

public class Demo1 {

    @Test
    public void test(){
         print(Grade.B);
    }
    public void print(Grade g){
        //System.out.println("hello,but i'am not a enumeration!");
        String value=g.localValue();
        System.out.println(value);
    }
}

/*class Grade{
    private Grade(){}
    public static final Grade A=new Grade();
    public static final Grade B=new Grade();
    public static final Grade C=new Grade();
    public static final Grade D=new Grade();
    public static final Grade E=new Grade();
}*/

enum Grade{ //class A 100-90 B:89-80 C:79-70 D:69-60 E:59-0
    A("100-90"){
        public String localValue(){
            return "优";
        }
    }

    ,B("89-80"){
        public String localValue(){
            return "优";
        }
    }

    ,C("79-70"){
        public String localValue(){
            return "优";
        }
    }

    ,D("69-60"){
        public String localValue(){
            return "优";
        }
    }

    ,E("59-0"){
        public String localValue(){
            return "优";
        }
    }; //Object

    private String value; //封装每个对象对应的分数
    private Grade(String value){
        this.value=value;
    }
    public String getValue(){
        return this.value;
    }

    public abstract String localValue();
}