javalj的博客

单利模式 模式1 public 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...