看代码：

import java.io.Serializable;

public class StaticSingleton implements Serializable{

 private static final long serialVersionUID = 1L;

 

 private StaticSingleton(){

  System.out.println("StaticSinglet is created");

 }

 

 private static class SingletonHolder{

  private static StaticSingleton instance = new StaticSingleton();

 }

 

 public static StaticSingleton getInstance(){

  return SingletonHolder.instance;

 }

 

 private Object readResolve(){

  return SingletonHolder.instance;

 }

 

 public static void main(String[] args) {

  // TODO Auto-generated method stub

  System.out.println(StaticSingleton.getInstance());

 }

}