Java enum 枚举类型使用举例

/** Java 枚举类型 用法介绍**/public class Test_11{//1.枚举类型的创建：创建了一个名字为ShootingMode(拍摄模式)的枚举类型，它具有5个具名值public enum ShootingMode{COMMON, SMART, HDR, SMILE, SELF_TIMER}public static void main(String[] args){//2.使用enum: 创建该类型的引用，并将其赋值给某个实例ShootingMode mode = ShootingMode.SMART;//3.toString():编译器自动添加的特性。很方便的显示实例的名称System.out.println(mode);//Output: SMART//4.ordinal(): 表示某个特定enum常量的声明顺序System.out.println(mode.ordinal());//Output: 1//5.static values(): 也是编译器添加的特性，按照enum常量的声明顺序，组成数组for(ShootingMode m: ShootingMode.values()){System.out.println(m); }//6.在switch语句中的应用Test_11t1 = new Test_11(ShootingMode.COMMON),t2 = new Test_11(ShootingMode.SMILE),t3 = new Test_11(ShootingMode.SELF_TIMER);t1.mode();t2.mode();t3.mode();}private ShootingMode shootingMode;public Test_11(ShootingMode m){shootingMode = m;}void mode(){System.out.print("shootingMode = ");switch(shootingMode){case COMMON:System.out.println("普通模式");break;case SMART:System.out.println("智能模式");break;case HDR:System.out.println("逆光模式");break;case SMILE:System.out.println("笑脸模式");break;case SELF_TIMER:System.out.println("自拍模式");break;default:}}}