This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
Hello all, Iam using multimap to store duplicates ,for each key multiple values, but how to retrive it means how to check for duplicate values while retrieving.please tell me how to check duplicate values.
This is an intermediate question, probably, but strikes me as belonging in advanced because complexity is involved.
MultiMap maps a key to a List or Vector which would mean that you would call get Iterator on the the return from a key lookup. You would then have to walk the value with the iterator, counting and testing and so on. I don't see where an Iterator is going to give out a count(), accessing the list or vector before walking the iterator would tell how many elements are in the List or Vector
"The differential equations that describe dynamic interactions of power generators are similar to that of the gravitational interplay among celestial bodies, which is chaotic in nature."
Joined: Nov 16, 2006
Thank you, For reply, but iam not checking for duplicates while inserting,Actually what iam trying is iam creating menu driven program for which it requires for single submenu can contain many many elements thats why iam using multi map to insert but while retriving there values i want to check if next key is similar to previous key then make it as submenu and take out only values which form a items of submenu for that i require to see for duplicates even i tried with hashcode() but i did not get, any more solutions please.