Search a object in a vector

[TalhaS]

Hi,
I am supposed to see whether an object of a class (not Object class) is already in vector containing some objects of same class.
for example:
I have a class "Edge" having a sourceNode and targetNode.
I am storing the instances of this class in an vector but before storing I need to know whether the new instance already exists in the vector or not?(edge with same source and target node)

Can anyone let me know how can i do it?

Thanks

[sukatoa]

You can use contains(Object o) method to test if that is already exists....

Or you can start to read here for more understandable details,

regards,
sukatoa

[danielstoner]

You can also use java.util.TreeSet<E>. It does it all at once for you