简直惊艳。
public class Singleton{
private Singleton(){
System.out.println(
"I'm creating")
}
private static class SingletonHolder{
private static Singleton instance =
new Singleton();
}
public static Singleton
getInstance(){
return SingletonHolder.instance;
}
}
转载请注明原文地址: https://www.6miu.com/read-59236.html
