JDK设计模式-单例模式

[last updated :2016/4/24] 未完成

0

1.饿汉式单例

public class Singleton {
    private static Singleton uniqueInstance = new Singleton();
    private Singleton() {
       // Exists only to defeat instantiation.
    }
    public static Singleton getInstance() {
       return uniqueInstance;
    }
    // other methods...
}