Question

Can anyone please tell me whether this is a singleton class or not?

public class Final_output{

  Cafe_factory obj=null;

  private Final_output()
  {
    obj = new Cafe_factory();
    obj.getOrder("French Fries");
    obj.getOrder("Biryani");
    obj.getOrder("Ice-cream");
  }

  public static void main(String args[])
  {
    new Final_output();
  }
}

Cafe_factory is another class in the same package.

Answer 1

This is not a Singleton.

Singleton for Example is:

public class Singleton {
    private static final Singleton instance = new Singleton();

    private Singleton() {}

    public static Singleton getInstance() {
        return instance;
    }
}