--%>
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 Parsing Parsing : Generally

    Parsing: Generally applied to the action of a compiler in examining a program source file for syntax errors. This is too employed more broadly to mean the analysis of the structure of input.

    		•
  • Q : Define the term SOAP Define the term

    Define the term SOAP.

    		•
  • Q : Benefits of the event-delegation model

    Write down some of the benefits of the event-delegation model over event-inheritance model?

    		•
  • Q : Explain VeriSoft VeriSoft (Godefroid,

    VeriSoft (Godefroid, 2005) is a model checker for C and C++; other languages can be used, but components in other languages are treated as black boxes. VeriSoft has been used to find defects in very large telecommunications programs (Chandra, Godefroi

    		•
  • Q : Define Modem Modem : It is a

    Modem: It is a modulator-demodulator. A hardware device employed to connect a digital computer to an analogue telephone network by making analogue signals into digital signals, and vice-versa.

    		•
  • Q : Explain Polling Polling : It is the

    Polling: It is the process of repeatedly testing until a situation becomes true. Polling can be incompetent when the time between tests is little compared with the time it will take for the condition to become true or right. A polling thread must slee

    		•
  • Q : Explain Cohesion Cohesion : The level

    Cohesion: The level to which a component executes a single well-stated task. A strongly cohesive technique, for example, will execute a single task, like adding an item to a data structure, or sorting several data, while a weakly cohesive technique wi

    		•
  • Q : CORBA allows high performance

    'CORBA was designed to allow high performance distributed applications to be written’. Discuss. Definitely, ’CORBA was designed to allow high performance distributed applications to be written’ because it provides:

    		•
  • Q : Explain For loop For loop : This is one

    For loop: This is one of the Java's three control structures employed for looping. The other two are while loop and do loop. A for loop includes of a loop header and a loop body. The header comprises of three expressions separated by two semicolons an

    		•
  • Q : XPATH selector Normal 0 false false

    Normal 0 false false