--%>
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 : What is Factory pattern Factory pattern

    Factory pattern: A pattern of class definition which is employed as a generator of instances of other classes. Frequently employed to form platform- or locale-particular implementations of abstract classes or interfaces. This decreases coupling betwee

    		•
  • Q : State the term GPO links State the term

    State the term GPO links? Explain.

    		•
  • Q : Define Protocol Protocol : It is a set

    Protocol: It is a set of rules for interaction between two processes. The protocol is generally specified in a Uniform Resource Locator (abbreviated as URL) to point out how a specific resource must be transferred from a Web server to the requesting c

    		•
  • Q : What is Priority level Priority level :

    Priority level: Each and every thread has a priority level that point out to the scheduler where it must be placed in the pecking order for being run. The eligible un-blocked thread with a specific priority will always be run prior to an eligible thre

    		•
  • Q : What is Quotient Quotient: Whenever

    Quotient: Whenever integer division is executed, the outcome comprises of a quotient and a remainder. The quotient symbolizes the integer number of times which the divisor divides into the dividend. For example, in 5/3, 5 is the dividend and 3 is the

    		•
  • Q : Describe tri-state devices Describe the

    Describe the tri-state devices and explain why they are necessary in a bus oriented system?

    		•
  • Q : Problem on Planar scintigraphy Let

    Let assume seven PMTs situated around the origin of the x-y coordinates on the face of the Anger camera as illustrated in the figure. The size of the PMTs is 2mm by 2 mm and each PMT has been allocated a number. The single scintillation event yields a response from PM

    		•
  • 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 : Who developed Extensible Hyper-Text

    Who developed Extensible Hyper-Text Markup Language? Answer: XHTML (Extensible Hyper-Text Markup Language) was developed by W3C HTML Working Group along with Steven

    		•
  • Q : Write a program that enters some text

    Write a program that enters some text into a char string called char text[100] and does the following: a) Calls a function called void vowels(char text[]) that prints out how many times each vowel (a/A, e/E, I/i, O/o, U/u) was foun

    		•