App.java

public class App {

	public static final Scanner scan = new Scanner(System.in);

	public static void main(String[] args) {
		System.out.println(flip(CoinFlip.HEADS));
		boolean b = true;
		while (b) {
			try {
				System.out.println("Enter a number:");
				int i = Integer.parseInt(scan.nextLine());
				System.out.println(i);

			} catch (Exception e) {

			}
		}

		scan.close();
	}

	public static boolean flip(CoinFlip call) {
		CoinFlip result = null;
		if (Math.random() > 0.5) {
			result = CoinFlip.TAILS;
		} else {
			result = CoinFlip.HEADS;
		}
		return result == call;

	}
}

CoinFlip.java

public enum CoinFlip {
	
	HEADS, TAILS;

}