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how do you find out if ids of objects in an array are present

Jason Rodrigues
Greenhorn

Joined: Oct 20, 2005
Posts: 21
Hi
Lets say i have an object A with id as an attribute and its type is int. I fill the array list with the A type objects. i want to check if the id in the object A exist.
Is there a way i can do it without looping through the entire collection, get the object A and comparing A.id to XXX to find if it exists ? Is there a way i can use the conatins to extract the id ?
Thank you
Reeve
Campbell Ritchie
Sheriff

Joined: Oct 13, 2005
Posts: 38472
    
  23
Where is your contains() method from? Unless you have got something with a suitable contains() method, you will probably have to go through the array element by element.
Campbell Ritchie
Sheriff

Joined: Oct 13, 2005
Posts: 38472
    
  23
. . . and please check your private messages for an important administrative matter.

CR
 
Consider Paul's rocket mass heater.
 
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