Objective:

Assignment:

• Write a program that allows the user to guess a secret number between 1 and 100 inclusive.

• The secret number is generated randomly. Java provides at least two ways to generate random numbers. Since we will need to grade your code, we want a reproducible sequence of random numbers. Hence, we will use the random number generator from the Random class. Do not use the random number generator from the Math class.

• The random number generator from the Random class needs to be initialized with a seed value. The following program demonstrates how this is done.

  import java.util.*;
  
  class Guess
  {
  	public static void main(String[] args)
  	{
                // =================================
                // Set up random number generator
                // to produce same sequence of numbers
                // =================================
  
                Scanner scan = new Scanner( System.in );
                int     seed;
                int     secret;
  
                System.out.print("Enter a positive integer: ");
                seed = scan.nextInt();
                System.out.format( "Seed value is: %d\n", seed );
                Random  generator = new Random( seed );
  
                secret = generator.nextInt( 100 ) + 1;	// 1..100 instead of 0..99
  
                System.out.format( "Today's secret number is: %d\n", secret );
  	}
  }
  

• Your job for lab2 is to modify this code so that the secret number is not printed. Instead, the user has to guess it. You need to keep track of how many guesses the user has made. If the guess is wrong, you provide a clue whether the secret number is higher or lower than the guess.

• See the following examples. Your program should produce the same EXACT output given the user's number and guesses.

  Enter a positive integer: 0
  Seed value is: 0
  Guess my number between 1 and 100: 10
  Guess a higher number
  Guess my number between 1 and 100: 20
  Guess a higher number
  Guess my number between 1 and 100: 30
  Guess a higher number
  Guess my number between 1 and 100: 40
  Guess a higher number
  Guess my number between 1 and 100: 50
  Guess a higher number
  Guess my number between 1 and 100: 60
  Guess a higher number
  Guess my number between 1 and 100: 65
  Guess a lower number
  Guess my number between 1 and 100: 64
  Guess a lower number
  Guess my number between 1 and 100: 63
  Guess a lower number
  Guess my number between 1 and 100: 62
  Guess a lower number
  Guess my number between 1 and 100: 61
  GOT IT IN 11 GUESSES!!
  

• Here is a different run. Your program should also produce the same EXACT output given the user's number and guesses.

  Enter a positive integer: 1
  Seed value is: 1
  Guess my number between 1 and 100: 50
  Guess a higher number
  Guess my number between 1 and 100: 75
  Guess a higher number
  Guess my number between 1 and 100: 87
  Guess a lower number
  Guess my number between 1 and 100: 81
  Guess a higher number
  Guess my number between 1 and 100: 84
  Guess a higher number
  Guess my number between 1 and 100: 85
  Guess a higher number
  Guess my number between 1 and 100: 86
  GOT IT IN 7 GUESSES!!
  

• Your program should be saved in a file named Guess.java. Your class should be named Guess.

• Make sure your code (and every program that you write) has a comment block in the beginning of the file.

• Submit your program using the following command on unix.ic.ucsc.edu:

   submit cmps012a-ap.w15 lab2 Guess.java
  

  Make sure that for this program, and all other programs you write for CMPS 12A this quarter, have been recompiled and tested on unix.ic.ucsc.edu before submission.

• Grading rubrics for lab2:

  100 -- if meets most requirements i.e. compiles/runs,
         has comment block with correct info, code is properly documented/formatted.
  75  -- if missing comment block, or poor formatting, or lack of documentation
  50  -- has submission, but problem with compilation or crashes, empty file,
         wrong filename, wrong class name, doesn't run, requires manual intervention by grader, etc.
         (i.e. compilation or runtime errors)
  50  -- if compiles and runs, but different or wrong sequence of random numbers (and answers)
         (i.e. logic errors)
  0   -- no submission
  
  Who Will Grade What:
  --------------------
  Derek  : aalkahel - dlopez8
  Eiten  : dlskilli - jssorens
  Ryan   : jtorre34 - romarks
  Kara   : rpickett - zwang58