单例模式

 1 package eameple;
 2 public class SingletonTest
 3 {
 4     public static void main(String[] args)
 5     {
 6         Singleton singleton = Singleton.getInstance();
 7         Singleton singleton2 = Singleton.getInstance();
 8 
 9         System.out.println(singleton == singleton2);
10     }
11 }
12 class Singleton
13 {
14     private static Singleton singleton=new Singleton();
15     
16     private Singleton()
17     {
18         
19     }
20     public static Singleton getInstance()
21     {
22         return singleton;
23     }
24 
25 
26 }