import java.util.Scanner;
public class WhileEx {
    
    
    public static void main(String[] args) {
        // MAIN CODE STARTS HERE
    
       // make the user guess, using a loop control variable
       int sekrit = 47;
       int user = 0;
       boolean done = false; // controls loop
       while (!done) {
           user = promptInt("Guess?");
           if (user == sekrit) {
               done = true;
           }
       }
        System.out.println("You guessed it!");
        
        // make the user guess
        // user input directly controls loop
        System.out.println("Second game");
        sekrit = 989;
        user = 0; // dummy value so loop starts
        while (user != sekrit) {
           user = promptInt("Guess?");
       }
        System.out.println("You guessed it! Again!");
        
        // read in numbers from the user 
        // and print sum and average
        System.out.println("Average time!");
        int sum = 0;
        int count = 0;
        user = promptInt("What number (negative to quit)");
        // as long as they give non-negative
        while (user >= 0) {
            sum = sum + user; // add last user input to sum
            count = count + 1; // update count
            // read in next input (or negative to quit)
            user = promptInt("Next number?");
        }
        // just in case their first input was negative...
        if (count != 0) {
            double average = sum / count;
            System.out.println("Sum: " + sum);
            System.out.println("Average: " + average);
        } else {
            System.out.println("No numbers given");
        }
        // MAIN CODE ENDS HERE
    }
    
    
    /*    Simple Utility methods that prompt the user and return input
          If you enter the wrong type of input, the program will end
          with an error!
    */
    
    // utility for reading in integer input
    public static int promptInt(String promptText) {
        System.out.print(promptText + " ");
        Scanner scan = new Scanner(System.in);
        int response = scan.nextInt();
        return response;
    }
    
    
}