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doubt in IS-A relationship

 
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hi
i doubt how this statisfies the IS-A relation

public class Species { }
public class Animal {private Species species;}

the class Animal has a reference to the class species....

literally is-a means extends....

can any one clear me?
Thanks in advance.
 
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Yeah u right,
The question doesnt satisfy IS-A relationship.
IS-A means having extends relationship with the class
 
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Car is-a Vehical

class Vehical {

}

class Car extends Vehical {

}
 
Greenhorn
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Originally posted by Parameswaran Thangavel:
hi
i doubt how this statisfies the IS-A relation

public class Species { }
public class Animal {private Species species;}

the class Animal has a reference to the class species....

literally is-a means extends....

can any one clear me?
Thanks in advance.




whenever you are extending any class then it is always a is-a relationship and whenever you were actually using a particular class in other class or you has the class(Species) in the class(Animal) the you are in has a relationship.
 
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