Enum 用法

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package com.hiredmyway.enums;

import java.util.EnumMap;
import java.util.EnumSet;
import java.util.Iterator;
import java.util.Map;
import java.util.Map.Entry;

import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletResponse;

public class TestEnum {
    protected Map<String, Object> session;
    protected Map<String, Object> request;
    protected HttpServletResponse response;
    protected ServletContext context;
    protected Object result;


    public enum State {
        ON,OFF
    }
    /**
    * @param args
    */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        TestEnum t = new TestEnum();
        String ex = KindEnum.STATE.getKindName();

       // 获得常量值，及0-N索引号，CODE值
        for (StateEnum em :StateEnum.values()){
            System.out.print(em+":"+em.ordinal()+", "+em.getCode()+"!");
        }

        System.out.println("/r/n");//回车换行符

      // EnumSet.range(StateEnum.DEFAULT, StateEnum.COLORADO) 从开始想要的值到你结束的值
        for (StateEnum e : EnumSet.range(StateEnum.DEFAULT, StateEnum.COLORADO)) {

            System.out.print(e+":"+e.ordinal()+", ");
            System.out.println("/r/n");
        }
        //常量值
        EnumSet<State> stateSet = EnumSet.allOf(State.class);
        for (State s: stateSet) {
            System.out.println(s);

        }
        System.out.println("---ok---");
        EnumMap<State, String> stateMap = new EnumMap<State, String>(State.class);

        stateMap.put(State.OFF, "Is OFF");
        stateMap.put(State.ON,"Is ON");
        Iterator it =stateMap.keySet().iterator();

       // 获得ON，OFF
        while (it.hasNext()) {
            State st =(State)it.next();
            String str =st.name();

//获得ON，OFF 对应得VALUES值

System.out.println(stateMap.get(st));
        }
        System.out.println("---ok1---");
        Iterator<Entry<State,String>> it1 = stateMap.entrySet().iterator();
        while (it1.hasNext()) {
            Entry<State, String> st = (Entry)it1.next();
            String str =st.getValue();

//获得ON，OFF 对应得VALUES值
            System.out.println(str);
        }
        System.out.println("---ok2---");
        for (State s: State.values()) {

//获得ON，OFF 和对应得VALUES值
            System.out.println("State:"+s.name()+":"+stateMap.get(s));

        }
    }

//    public String execute() throws Exception {
//        //SysCache.getInstance().getEnum(kind);
    //    List <Enums> select_data = prepareCache().getEnum(KindEnum.EXPERIENCE.getKindName());
//
//        StringBuffer select_txt = new StringBuffer();
//
//        for (Enums enums : select_data) {
//
//                select_txt.append("<option value='"+enums.getCode()+"'>"+enums.getCodeDesc()+"</option>");
//
//        }
//        // TODO Auto-generated method stub
//        return null;
//    }



}