Java演示设计模式中的单件模式，设计模式单件,public class

Java演示设计模式中的单件模式，设计模式单件,public class

public class SimpleSingleton {    private static SimpleSingleton singleInstance =  new SimpleSingleton();    //Marking default constructor private    //to avoid direct instantiation.    private SimpleSingleton() {    }    //Get instance for class SimpleSingleton    public static SimpleSingleton getInstance() {        return singleInstance;    }}

                                调用方法

public enum SimpleSingleton {    INSTANCE;    public void doSomething() {    }}//Call the method from Singleton:// http://www.byrx.netSimpleSingleton.INSTANCE.doSomething();