public class Singleton {
//私有化构造函数
private Singleton(){ }
//定义一个静态枚举类
static enum SingletonEnum{
//创建一个枚举对象,该对象先天为单例
INSTANCE;
private Singleton singletion;
//私有化枚举的构造函数
private SingletonEnum(){
singletion=new Singleton();
}
public Singleton getInstnce(){
return singletion;
}
}
//对外撮合一个获取Singleton对象的静态方法
public static Singleton getInstance(){
return SingletonEnum.INSTANCE.getInstnce();
}
public static void main(String[] args) {
System.out.println(Singleton.getInstance());
System.out.println(Singleton.getInstance());
System.out.println(Singleton.getInstance()==Singleton.getInstance());
}
}