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