/**
* 懒汉式--单例设计模式
*/
public class LazyUnSafeSingleton {
//私有化构造方法
private LazyUnSafeSingleton(){}
//定义引用
private static LazyUnSafeSingleton instance;
//获取对象方法
public static LazyUnSafeSingleton getInstance(){
if(instance == null){ //多个线程同时进入到这,会实例多个对象
instance = new LazyUnSafeSingleton();
}
return instance;
}
}
