--%>
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 Unnamed package Unnamed

    Unnamed package: All classes defined in the files without a package declaration are placed in an unnamed package.

    		•
  • Q : State the term multi programming State

    State the term multi programming.

    		•
  • Q : Explain Method overriding Method

    Method overriding: It is a method stated in a super class might be overridden by a method of similar name stated in a sub class. The two methods should have similar name and number and types of formal arguments. Any checked exception thrown by sub-cla

    		•
  • Q : Define Software engineering Software

    Software engineering: It is the system of applying of an engineering discipline to the implementation, design and maintenance of the software systems.

    		•
  • Q : Define the term Local inner class and

    Define the term Local inner class and Local variable: Local inner class: It is an inner class stated in a method. Local variable: It is a variable defined within

    		•
  • Q : State the term tombstone lifetime

    State the term tombstone lifetime attribute?

    		•
  • Q : Explain Magic number Magic number : It

    Magic number: It is a constant value with significance within a specific context. For example, the value 12 could mean numerous different things - the number of hrs you have worked today, the number of dollars you are payable by a friend, and so forth

    		•
  • Q : Libraries involved in Windows

    Explain the important libraries involved in Windows programming?

    		•
  • Q : Describe Locale Locale : The details

    Locale: The details which are dependent on conventions and customs approved by a specific country or culture. Within programs, this influences issues like number and date formatting, for example. Designers of classes must be sensitive to the locale-sp

    		•
  • Q : How can you explain basic elements of

    How can you explain basic elements of WebServices?

    		•