level 1 : 16 Step by step interview question to crack the interview.

1.What is overloading in java ?
2.What do you know about method signature ?
3.What do you mean by return type in java ?
4.Can we overload method by changing return type?

   void method(String s){}

   int  method(){return 0;}

5.Can we overload method by changing return type?

   Number method(String s){return 0;}

   Integer  method(){return 0;}

6. What will be the output of below code?

    public class callkr {

       public callkr(){

     System.out.println(" A");

            }

       void callkr(){

     System.out.println(" B");

            }

  public static void main(String[] args) {

     callkr c=new callkr();

            c.callkr();

 }

}

7.Can we overload constructor ?

8.Create your own System.out.println("callkr");

9.When we get ambiguity while overloading a methods ?

10.What is covariant return type in java ?