Contents
Should return type be same in method overriding?
Yes it may differ but there are some limitations. Before Java 5.0, when you override a method, both parameters and return type must match exactly. Java 5.0 it introduces a new facility called covariant return type. You can override a method with the same signature but return a subclass of the object returned.
Can we have different return type in method overriding?
The basic rule for overriding a method in Java is that the new overriding method in derived class should have same signature as of Base class’s method. Overriding method can have different return type but this new type should be, A Non-Primitive.
Can two function have the same name?
That is, you can use the same name for two or more functions in the same program. An overloaded function must have a parameter list that’s different from all other functions with the same name so the compiler has some way to tell the functions apart.
Can we change argument list of overridden method?
You can’t change the number of type parameters in the overridden method. As for your case, override clearly fails with the return type. But even if the return types were same, your method still wouldn’t be override equivalent, as you have fewer type parameters in the supposed-to-be overridden method.
Can we have two return statements in Java?
Java doesn’t support multi-value returns. We can use following solutions to return multiple values. We can return an array in Java. Below is a Java program to demonstrate the same.
Can a method have the same name but a different return type?
You can have methods with the same name and a different return type only if the parameters are different. Otherwise how would you be able to determine which type you were getting back, US Department of Transpo…
How to create C # method which can return multiple data types?
Yes, it is possible to do like that, but first your Test function must have a return type. 1: Use object as your return type. int retVal = …; // Now you have the type, do what you want according to this type.
Can We overload a method based on different return type but same?
No, you cannot overload a method based on different return type but same argument type and number in java. In overloading it is must that the both methods have −
Is it better to have one return statement or two?
Because of that, we continue to think in terms of procedures and keep talking about whether two return statements are better than one. If your code is truly object-oriented, you won’t be able to have more than one return. Moreover, you will have nothing except a return in each method.