Can overriding have different return type?
Java 5.0 onwards it is possible to have different return type for a overriding method in child class, but child’s return type should be sub-type of parent’s return type. Overriding method becomes variant with respect to return type.
Can we override method which have different return type with same name and signature?
Can we overload or override method which have different return type with same name and signature? Overloaded methods are differentiated based on the number and type of the parameters passed as an arguments to the methods. But you cannot declare two methods with the same signature and different return type.
Can override method have different arguments?
You can have multiple versions of a method with the same name having different number of parameters. You can have all these in the main/parent class or you can add the newer versions in the subclasses only. There is no restriction on doing this.
Should return type be same in method overloading and overriding?
In java, method overloading can’t be performed by changing return type of the method only. Return type can be same or different in method overloading. But you must have to change the parameter. Return type must be same or covariant in method overriding.
Can we change only return type while method overloading?
In java, method overloading is not possible by changing the return type of the method only because of ambiguity.
Can we override method in same class?
The answer is No, you cannot override the same method in one class. The anonymous inner class is a different class.
Do you need the same return type for overriding method in Java?
The overriding method must have same return type (or subtype) : From Java 5.0 onwards it is possible to have different return type for a overriding method in child class, but child’s return type should be sub-type of parent’s return type.
Can overloading method have a different return type?
Overloading with same arguments and different return type − No, you cannot overload a method based on different return type but same argument type and number in java. same name. different parameters (different type or, different number or both). Thereof, can we have different return type in method overriding in Java?
Can a covariant return be an overriden method?
Your overriden method can have same type or the sub-type of the original return type which is called as covariant return. If you change the return type of the overriden method to something else which is not a sub-type of the original type, then you’d get a compile time error. can you explain why we get error? or what is the reason behind?
Can a method have a different return type?
But there is on exception to this rule i.e. Overriding method can have different return type but this new type should be, A Non-Primitive. A Subclass of what base class’s overridden method is returning i.e. co-variant Return Type.