javalj的博客

单利模式模式1public class Singleton1 { private static Singleton1 singleton1; private Singleton1() { } //多线程不安全. public static Singleton1 getInstance() { if (singleton1 == ...

public interface Subject { void doSomething();}public class RealSubject implements Subject{ public void doSomething(){ //todo someting }}public class ProxyObject implements...

public interface Subject { void doSomething();}public class RealSubject implements Subject{ public void doSomething(){ //todo someting }}public class DynamicProxy implement...