--%>
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 : Basic programming help In C Language 1.

    1. In what ways are the initialization, repetition test, and update steps alike for a sentinel-controlled loop and an endfile-controlled loop? How are they different? 2. Rewrite the program segment that follows using a for loop: count = 0;

    		•
  • Q : Define Number of Interleavings Number

    Number of Interleavings: Besides the raw number of threads, the state space is affected by the number of potential interleavings of these threads. While there exist automated techniques (partial-order reduction) to reduce these interleavings, most mod

    		•
  • Q : How is an external entity reference

    While constructing an XML DTD, how do you make an external entity reference within an attribute value?

    		•
  • Q : Program to controls a quiz show in C++

    Foundations of Computer Science In this project, we will write a program that controls a quiz show, much like the many popular TV shows. The program will read in a group of questions and thei

    		•
  • Q : Explain Multiple inheritance Multiple

    Multiple inheritance: The capability of a class or interface to expand more than one interface or class. In Java, multiple inheritance is only accessible in the circumstances which are shown below: An interf

    		•
  • Q : What is Server Server : Something which

    Server: Something which gives a service. The Web server delivers resources to its clients, for example. Whenever the server is an object, this is the recipient of messages from its object clients.

    		•
  • Q : Define Context Normal 0 false false

    Normal 0 false false

  • Q : State the term tombstone lifetime

    State the term tombstone lifetime attribute?

    		•
  • Q : Define the term Return value Define the

    Define the term Return value: This is the value of the expression employed in a return statement.

    		•
  • Q : How Java client access Corba A Corba

    A Corba remote object exists. How could you get a Java client to access this object?

    		•