--%>
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 : Search and Partial Coverage of Java

    Search and Partial Coverage: JPF supports well-known search strategies such as BFS and DFS as well as various heuristic-based searches such as A*, Best-First, and Beam Search. You can sum a number of heuristics during the search, and set search depth

    		•
  • Q : What is Runtime stack Runtime stack :

    Runtime stack: It is a stack structure maintained by the Java Virtual Machine which records that methods are presently being executed. The most of late entered technique will be at the top of the stack and the main technique of an application will be

    		•
  • Q : Explain Static variable Static variable

    Static variable: It is a static variable defined within a class body. Such a variable fits in to the class as a whole, and is, thus, shared by all objects of the class. The class variable may be employed to define the default value of an instance vari

    		•
  • Q : State the term GPC and GPT State the

    State the term GPC and GPT.

    		•
  • Q : Explain Primitive Type Abstractions

    Primitive Type Abstractions: An effective way to reduce the state space of a program is to replace the primitive types with the corresponding abstractions that encapsulate all the possible operations that are performed on these types.

    Q : Illustrates the difference between

    Illustrates the difference between Property Get, Let and Set?

    		•
  • Q : Explain the way to back-up active

    Explain the way to back-up active directory.

    		•
  • Q : Explain Variable declaration Variable

    Variable declaration: It is the association of a variable with a specific type. It is significant to make a distinction among the declaration of variables of primitive types and such of class types. The variable of primitive type performs as a contain

    		•
  • Q : What is an Object Object : It is an

    Object: It is an instance of a particular class. In common, any number of objects might be constructed from a class definition. The class to which an object belongs states the common characteristics of all instances of that class. In those characteris

    		•
  • Q : Risks associated while porting a c pre

    Q. 1 Explain number of issues which are faced while porting a c pre processor in java. These issues always have the probability that the code will show errors while trying to execute the code in java.  Q.2 : Software Requirement Specification or Requirements for the studen

    		•