![]() ![]() Java 1.5 onwards, Covariant return type is allowed. Must be the same until Java 1.4 version only. Overloading vs Overriding in Tabular FormĪ list of differences between overloading and overriding in Java is given below for quick revision in tabular form. Method overriding is also known as runtime polymorphism, dynamic polymorphism, or late binding. Method overloading is also known as compile-time polymorphism, static polymorphism, or early binding.ī. Method resolution in overriding always takes care by JVM based on runtime object.Ī. In case of method overriding, if child class method throws any checked exception compulsory parent class method should throw the same checked exception are its parent otherwise we will get compile-time error but there is no restriction for an unchecked exception.Ī. Method resolution in overloading always takes care by the compiler based on reference type.ī. Exception thrown can be anything in the overloading concept.ī. In overriding, subclass method’s access modifier must be the same or higher than superclass method access modifier i.e we cannot reduce the visibility subclass method while overriding.Ī. In overloading, access modifiers can be anything or different.ī. ![]() Private, static, and final method can be overridden in Java.Ī. ![]() Overriding concept is not applicable to private, static, and final method. Private, static, and final method can be overloaded in Java.ī. Method overriding is performed in two classes through inheritance (Is-A relationship).Ī. Method overloading is generally performed in the same class.ī. In method overriding, the return type must be the same until Java 1.4 version but Java 1.5 onwards, method overriding can be done by changing the covariant return type.Ī. In method overloading, the return type can be the same or different.ī. The signature of the overriding method must be the same.Ī. The signature of the overloaded method must be different.ī. ![]()
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