Pattern(设计模式)。单例模式(Singleton):表示一个类只会生成唯一的一个对象。
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 Singleton13 {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 }
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