// CSE 142, Winter 2008, Marty Stepp
// 
// This program demonstrates a method with a loop that returns a boolean result.

import java.util.*;   // for Random

public class LuckySeven {
	public static void main(String[] args) {
		Random rand = new Random();
		
		// call my method to test its results
		if (seven(rand)) {
			System.out.println("   I got a lucky 7!!");
		} else {
			System.out.println("   I didn't get a 7.  :-(");
		}
	}
	
	public static boolean seven(Random rand) {
		for (int i = 1; i <= 10; i++) {
			// pick a random number
			int lotto = rand.nextInt(30) + 1;
			System.out.print(lotto + " ");
			if (lotto == 7) {
				// if I get a 7, I can stop immediately
				return true;
			}
		}
		
		// if I ever get down here,
		// there was never a 7
		return false;
	}
}