Method randomString

java/Chapter 17/Question17_5/Question.java:119–131

()

	}
	
	public static String randomString() {
		int length = 4;
		char[] str = new char[length];
		Random generator = new Random();
		
		for (int i = 0; i < length; i++) {
			int v = generator.nextInt(4);
			char c = letterFromCode(v);
			str[i] = c;
		}
		
		return String.valueOf(str);
	}
	
	public static boolean test(String guess, String solution) {
		Result res1 = estimate(guess, solution);