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Abstract methods

damodar kumar
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Joined: May 19, 2008
Posts: 77

1) In super class i have 5 abstarct methods. im in need of only 2 methods of superclass , did i want implement all the 5 mentods or i can go for only 2 methods in sub class.

2)super class contains abstarct methods , in subclass also im not implementing superclass methods, in another subclass i will implement those methods , is that complusary to have abstarct keyword for all that subclass.


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Jeanne Boyarsky
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Joined: May 26, 2003
Posts: 30548
    
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1) You must implement all the abstract methods if you want a concrete subclass.

2) Yes, the abstract keyword is required in that case.


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damodar kumar
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Joined: May 19, 2008
Posts: 77

For above question 1 if subclass is also abstact , then it is necessary to implement all abstarct methods
Vikas Kapoor
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Joined: Aug 16, 2007
Posts: 1374
Originally posted by damodar kumar:
For above question 1 if subclass is also abstact , then it is necessary to implement all abstarct methods


Hi Damodar,

Welcome to JavaRanch.

No,it is not required to implement all the methods of superclass. More about Abstract class and methods.This will surely help you.

And hey Jeanne,

You are having a Nelson's number of posts (11111).
[ June 02, 2008: Message edited by: Vishal Pandya ]
podonga poron
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Joined: May 12, 2008
Posts: 55
this is my first answer !! and no a question

hope it helps


[ June 02, 2008: Message edited by: podonga poron ]
 
It is sorta covered in the JavaRanch Style Guide.
 
subject: Abstract methods