Stuck with loops

[sillyben]

Can anyone help me with this problem,
'You should reject numbers which has already been guessed whether correct or not. '
I have asked the user to input in the number, but when i want to stop them from re-entering the same number, i seems to have a problem.
What function can i use?

[Fubarable]

You must have some type of collection of numbers that have already been guessed, so why not loop through that collection checking to see if the current number is amongst the already guessed ones.

[sillyben]

How do i do that?
i have done till here:

// Player input
		int[] arrayPlayerGuess = new int[3];
		for (int i = 0; i < arrayPlayerGuess.length; i++) {
			number = Keyboard.readInt("Enter Your Guess Number > ");
			// Points
			for (int a = 0; a < arrayRandomNumber.length; a++) {
				if (number == arrayRandomNumber[a]) {
					count = count + 1;
				}
			}

			// End of points
			// End of player input
			{
				// Validation
				while (number <= 0 || number > 50) {
					System.out.println("Please Only Enter Number 1 To 50.");
					number = Keyboard.readInt("Enter Your Guess Number > ");
					// End of validation
				}
			}
		}

how do i add to this code?

[JosAH]

Can anyone help me with this problem,
'You should reject numbers which has already been guessed whether correct or not. '
I have asked the user to input in the number, but when i want to stop them from re-entering the same number, i seems to have a problem.
What function can i use?

Read the API documentation of the BitSet class; it is cheap and fast. If you generate/guess a number, check its bit; it it was already set, the number was already generated/guessed, otherwise set its bit to mark it generated/set.

kind regards,

Jos