单例模式

代码如下：

public class SingleObject { public static SingleObject obj = new SingleObject(); public static SingleObject getInstance(){ return obj; }

//当构造方法被private修饰后，无法被实例化 private SingleObject(){}}

 

测试代码如下：

public class TestSingle { public static void main(String[] args) { SingleObject obj1 = SingleObject.getInstance(); SingleObject obj2 = SingleObject.getInstance(); System.out.println(obj1 == obj2); }}

打印结果为：true

 

转载于:https://www.cnblogs.com/beibidewomen/p/7153921.html

相关资源：数据结构—成绩单生成器