java 单例模式模式实现
2021-06-09 15:03
标签:final java 单例 single return public nal 效率 let 参考 参考:https://www.cnblogs.com/ngy0217/p/9006716.html 饿汉式(线程安全,调用效率高,但不能延时加载): 懒汉式:静态内部类实现模式(线程安全,调用效率高,可以延时加载) java 单例模式模式实现 标签:final java 单例 single return public nal 效率 let 参考 原文地址:https://www.cnblogs.com/linwenbin/p/14489714.htmlpublic class ImageLoader{
private static ImageLoader instance = new ImageLoader;
private ImageLoader(){}
public static ImageLoader getInstance(){
return instance;
}
}
public class SingletonDemo3 {
private static class SingletonClassInstance{
private static final SingletonDemo3 instance=new SingletonDemo3();
}
private SingletonDemo3(){}
public static SingletonDemo3 getInstance(){
return SingletonClassInstance.instance;
}
}