Overloading Vs Overriding Java

Overloading is the ability to use same interface name but with different arguments. Method overloading is a compile time polymorphism.

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Overriding is applicable in the context of inheritance.

Overloading vs overriding java. In method overloading return type can or can not be be same but we must have to change the parameter because in java we can not achieve the method overloading by changing only the return type of the method. Overriding vs overloading overriding implements runtime polymorphism whereas overloading implements compile time polymorphism. Overloading and overriding are completely different.

In contrast reference type determines which overloaded method will be used at compile time. Only the notion about interface function name is same. The real object type in the run time not the reference variable s type determines which overridden method is used at runtime.

In method overloading more than one method shares the same method name with different signature in the class. Purpose of functions might be same but the way they work will differ based on the argument types. The method overriding occurs between superclass and subclass.

Method overriding rules we read above the rules for method overloading now its time to list down the rules which you should keep remember while overriding a method in java. Overloading occurs between the methods in the same class. Here are some important facts about overriding and overloading.

1 the method argument list in overridden and overriding methods must be exactly same if they don t match you will end up with an overloaded method. Difference between method overloading and method overriding in java. The key difference between overloading and overriding in java is that the overloading is the ability to create multiple methods of the same name with different implementations and overriding is to provide an implementation for a subclass method that already exists in the superclass.

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