java

RandomNumber.java

public class RandomNumber {
	public static void main(String args[]) {
		int[] number = new int[4];
		boolean flag = true;

		for (int i = 0; i < number.length; i++) {
			int temp = RandomNumber.Generator();
			while (flag) {
				if (RandomNumber.Check(temp, number))
					flag = false;
				else
					temp = RandomNumber.Generator();
			}
			number[i] = temp;
			flag = true;
		}
		for (int i : number)
			System.out.print(i + " ");
	}

	public static boolean Check(int n, int[] num) {
		for (int x : num) {
			if (x == n)
				return false;
		}
		return true;
	}

	public static int Generator() {
		return (int) (Math.random() * 10);
	}
}