手写个单例模式吧，最优的那种
2019-08-05 本文已影响0人
Cherry300
package cn.ifre.launcher.client;
public class Singleton {
private static Singleton instance = null;
public static Singleton getInstance(){
if (instance ==null){
synchronized(Singleton.class){
if (instance==null)
instance=new Singleton();
}
}
return instance;
}
private Singleton(){
}
}
