Java-Enum枚举类型

package cn.ALAN_CF.studyf009;

/**
 * @author 15328
 */

public enum Color {
    /**S*/
    RED,GREEN, BLUE,
}

package cn.ALAN_CF.studyf009;

/**
 * @author 15328
 */

public enum Theme {
    /***/
    DAY_MODE("日间模式"), NIGHT_MODE("夜间模式");

    private String chinese;
    private Theme (String chinese){
        this.chinese = chinese;
    }
    @Override
    public String toString(){
        return this.chinese;
    }
}

package cn.ALAN_CF.studyf009;


/**
 * Enum:
 * 1、不能用new
 * 2、唯一的static
 * 3、final、private
 * 4、可以使用Switch语句
 * 5、构造函数是private
 * @author 15328
 */
public class Main {
    public static void main(String[] args) {
        Theme mode = Theme.DAY_MODE;
        System.out.println(mode.getClass());
        System.out.println(mode);
        mode = Theme.NIGHT_MODE;
        System.out.println(mode);
        Theme mode2 = Theme.NIGHT_MODE;
        System.out.println(mode == mode2);
        System.out.println(mode == Theme.NIGHT_MODE);
        System.out.println(mode.name());
        System.out.println(mode.ordinal());
        System.out.println(Theme.DAY_MODE.ordinal());
        System.out.println("单纯mode:" + mode + " *** name():" + mode.name()
                + " *** toString():" + mode.toString() + "   *** ordinal():" + mode.ordinal());
        mode = Theme.DAY_MODE;
        System.out.println("单纯mode:" + mode + " *** name():" + mode.name()
                + " *** toString():" + mode.toString() + "   *** ordinal():" + mode.ordinal());
        Color color1 = Color.BLUE;
        Color color2 = Color.GREEN;
        Color color3 = Color.RED;
        System.out.println("单纯color:" + color1 + " *** name():" + color1.name()
                + " *** toString():" + color1.toString() + "   *** ordinal():" +color1.ordinal());
        System.out.println("单纯color:" + color2 + " *** name():" + color2.name()
                + " *** toString():" + color2.toString() + "   *** ordinal():" +color2.ordinal());
        System.out.println("单纯color:" + color3 + " *** name():" + color3.name()
                + " *** toString():" + color3.toString() + "   *** ordinal():" +color3.ordinal());
    }
}