How to have unique random number?

Question

This is how i am generating a unique no in between 1 to 6 and getting appropriate images from the drawable folder.

Random rand = new Random();
// n = the n         


        

Answer 1

Create a static list of possibilities you've already gotten.

static ArrayList listIdontWantAnymore = new ArrayList();

int NextRandomNumber() {
    Random random = new Random();
    int myRandomInt;

    do {
        myRandomInt = random.NextInt(6) + 1;
    } while(listIdontWantAnymore.Contains(myRandomInt));

    listIdontWantAnymore.Add(myRandomInt);

    // now your 'myRandomInt' is what you want it to be.
    return myRandomInt;
}