--%>
Assignment Help - homework help

Method over ridding in java

Q. Explain method over ridding in java. Give example.              

Ans. Method over ridding: In a class hierarchy, when a method in a subclass has the same name and type signature as a method in its subclass then the method in the subclass in said to over ride the method in the super class. When an over ridden method is called from with a subclass it will always refer to the version of tat method defined the subclass. The version of the technique defined by the super class will be unseen. When show () is invoked on the object of type B, the version of show () defined in B is utilized. This is the version of show () inside B over riddles the version declared in A. If you want to access the super class version of an over ridden method function, you can do so by using super class. For example, in the version of B, the super class version is show () is invoked within the subclass version. This permits all instance variables to be exhibited.

Class B extends A

{  int K;

B { int a, int b, int c)

{  super (a, b)

K = c;

}

}

Method over ridding occurs only when the names and the types signature of the two methods are identical. If they are not then the two methods are simply over loaded. 

   Related Questions in Programming Languages

  • Q : Define the term Identifier Define the

    Define the term Identifier: It is a programmer-defined name for a method, variable, class and interface.

    		•
  • Q : Define the term Local inner class and

    Define the term Local inner class and Local variable: Local inner class: It is an inner class stated in a method. Local variable: It is a variable defined within

    		•
  • Q : Define Peer Peer : It is a term

    Peer: It is a term employed of the Abstract Windowing Toolkit (AWT) to refer to the underlying classes which give the platform-specific implementation of the component classes.

    		•
  • Q : Explain Window manager Window manager :

    Window manager: This is a window manager which provides a computer user with a virtual desktop having one or more windows and working regions in which individual programs might be run. Window managers permit the contents of a user's desktop to be arra

    		•
  • Q : Write a program that initializes an

    Write a program that initializes an integer array a[20] with values {0, 1, 2, 3, ...18, 19 - once each} then scrambles them up and prints the values in random order. For example: 19 2 3 8 11 1 4 17 7 15 9 0 16 12 18 13 5 6 10 14    

    		•
  • Q : Explain the term hard real-time Explain

    Explain the term hard real-time.

    		•
  • Q : Define Identifiers Define Identifiers

    Define Identifiers and their naming convention in brief?

    		•
  • Q : Define the term Marking interface

    Define the term Marking interface: It is an interface with no methods.

    		•
  • Q : What is an Anonymous array Anonymous

    Anonymous array: It is an array formed without an identifier. The anonymous array is generally formed as an actual argument, for example:// generate an anonymous array of integers.    YearlyRainfall y2k = new YearlyRai

    		•
  • Q : Define the term Direct recursion Define

    Define the term Direct recursion: Recursion which outcomes from a method of calling itself.

    		•