Question

I have a method getValue like this

public Object getValue() {
     return Integer.valueOf(0);

}

and a call in the main method:

getValue() + 5;

This is simplified.

How to get this working without casting in the main method, but instead how to cast the return type if possible?

Answer 1

You could use generics:

public class MyClass<T extends Number>{


  public T getValue(){
    //do something here
  }
}

MyClass<Integer> foo = new MyClass<Integer>();
foo.getValue()+5;