public class Singleton {
public static Singleton singleton;
public Singleton(){
}
public static Singleton getInstance(){
if(singleton == null){
singleton = new Singleton();
}
return singleton;
}
public static void main(String arsg[]){
Singleton s1 = Singleton.getInstance();
Singleton s2 = Singleton.getInstance();
System.out.println(s1==s2);
}
}