This week's book giveaway is in the OO, Patterns, UML and Refactoring forum. We're giving away four copies of Refactoring for Software Design Smells: Managing Technical Debt and have Girish Suryanarayana, Ganesh Samarthyam & Tushar Sharma on-line! See this thread for details.
well iam unable to create random numbers betn 1-100,without repetetion. iam declaring an array to store all random numbers. then generate an array number and compare it with array elements but it is not getting done
By without repetition you mean you want to randomly permute a sequence of numbers and then show them one by one? If that's the case I would recommend creating a list of numbers from 1 to n and then calling Collections.shuffle on it. Then your "ith" random number will be the "ith" element of this sequence.