Method overriding, in object oriented programming, is a language feature that allows a subclass to provide a specific implementation of a method that is already provided by one of its superclasses. The implementation in the subclass overrides (replaces) the implementation in the superclass.

A subclass can give its own definition of methods which also happen to have the same signature as the method in its superclass. This means that the subclass's method has the same name and parameter list as the superclass's overridden method.

An instance method in a subclass with the same signature (name, plus the number and the type of its parameters) and return type as an instance method in the superclass overrides the superclass's method.

The ability of a subclass to override a method allows a class to inherit from a superclass whose behavior is "close enough" and then to modify behavior as needed. The overriding method has the same name, number and type of parameters, and return type as the method it overrides.

In a class hierarchy, when a method in a subclass has the same name and type signature as a method in its superclass, then the method in the subclass is said to override the method in the superclass. When an overridden method is called from within a subclass, it will always refer to the version of that method defined by the subclass. The version of the method defined by the superclass will be hidden.

If a class inherits a method from its super class, then there is a chance to override the method provided that it is not marked final.

The benefit of overriding is: ability to define a behavior that's specific to the sub class type. Which means a subclass can implement a parent calss method based on its requirement.

In object oriented terms, overriding means to override the functionality of any existing method.

Sometimes a subclass inherits a method from a superclass that doesn't quite fit its needs. Perhaps the subclass inherited twenty methods and just one of them wasn't quite right.

In that case, the subclass would override that method by redefining that method itself.

This override does not affect the method as defined in the superclass.

In overriding, a method in a parent class is overridden in the child class. The method in the child class will have the same signature as that of the parent class. Since the method in the child class has the same signature & name as the method of its parent class, it is termed as overriding.

A subclass may replace an inherited method from a superclass.When a subclass defines a method with the same name, return type, and argument list as a method in a superclass, the superclass method is said to be overridden. When the overridden method is invoked for an object of the class, the new definition of the method is called and not the old definition from the superclass.

When you call an object’s method, Java looks for that method definition in the object’s class. If it doesn’t find one, it passes the method call up the class hierarchy until a method definition is found. Method inheritance enables you to define and use methods repeatedly in subclasses without having to duplicate the code.

However, there might be times when you want an object to respond to the same methods but have different behavior when that method is called. In that case, you can override the method. To override a method, define a method in a subclass with the same signature as a method in a superclass. Then, when the method is called, the subclass method is found and executed instead of the one in the superclass.

When a class defines a method using the same name, return type, and arguments as a method in its superclass, the method in the class overrides the method in the superclass. When the method is invoked for an object of the class, it is the new definition of the method that is called, not the superclass' old definition.