/****

* 带有构造方法的枚举

* @author yanlong

* 2017/5/7

*/

package local;

public class EnumTest {

public static void main(String[] args){

WeekDay weekDay2=WeekDay.FRI;

System.out.println(weekDay2.name());

System.out.println(weekDay2.ordinal());

}

public enum WeekDay{

SUN(1),MON,TUS(3),WEN,THI,FRI,SAT;

private WeekDay(){System.out.println("first");}

private WeekDay(int day){System.out.println("second");}

}

}

————————————————————————————————————————————————————————

/****

* 带有构造方法的枚举

* @author yanlong

* 2017/5/7

*/

package local;

import java.sql.Date;

public class EnumTest {

public static void main(String[] args){

WeekDay weekDay2=WeekDay.FRI;

System.out.println(weekDay2.name());

System.out.println(weekDay2.ordinal());

new Date(300);

}

public enum WeekDay{

SUN(1),MON,TUS(3),WEN,THI,FRI,SAT;

private WeekDay(){System.out.println("first");}

private WeekDay(int day){System.out.println("second");

}

}

public enum TrafficLamp{

RED(30){

public TrafficLamp nextLamp(){

return GREEN;

}

},

GREEN(45){

public TrafficLamp nextLamp(){

return YELLOW;

}

},

YELLOW(5){

public TrafficLamp nextLamp(){

return RED;

}

};

private int time;

public abstract TrafficLamp nextLamp();

private TrafficLamp(int time){

this.time=time;

}

}

}