--%>
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 : Describe Real number Real number : It

    Real number: It is a number with an integer and a fractional portion. The primitive types double and float are employed to symbolize real numbers.

    		•
  • Q : Overloading and overriding in the

    Illustrate the difference between overloading and overriding in the programming language?

    		•
  • Q : What are Logical operators Logical

    Logical operators: The operators, like &&, ||, &, | and ^ which take two Boolean operands and generate a Boolean outcome. Employed as part of a Boolean expression, frequently in the condition of the control structure.

    		•
  • Q : BAT files and shell scripts Using the

    Using the Web as a resource for your investigation, find out and explain what BAT files and shell scripts contain, and what they are used for. In the light of your findings, discuss why an operating system would provide both a graphical user interface

    		•
  • Q : Define process group Define the process

    Define the process group?

    		•
  • Q : Define Container Abstractions Container

    Container Abstractions: Abstractions for containers (such as lists, stacks, sets, or queues) may represent just the state of a container—e.g., full or empty—and abstract away from the actual container content. The list operations also need

    		•
  • Q : Updating the Status of an Order in SQL

    Build a procedure named STATUS_SHIP_SP which permits a company to employee in the Shipping Department to update the status of an order to add up shipping information. The BB_BASKETSTATUS table maintains a list of events for each order and hence a shopper can see the c

    		•
  • Q : Explain main quality of unsuitable life

    What are the main quality consequences of selecting an unsuitable life cycle model for a software project?

    		•
  • Q : Compute Days Between Ordering and

    An analyst in the quality assurance office reviews the time lapse between receiving an order and shipping an order. Any orders which have not been shipped in a day of the order being positioned are investigated. Build a function named ORD_SHIP_SF which computes the nu

    		•
  • Q : What is First in-first out First in,

    First in, first out: It is FIFO semantics of the queue data structure. Items are eliminated in the order in which they arrived in the queue; therefore older items are always eliminated before newer ones.

    		•