Question

Part3. Number Guessing: Computer vs. Computer. Write a function Use MATLAB guess_number_pc_pe(upper_bound) that performs a game of guessing an computer number against a computer. Finally, it lists the number of attempts needed to guess the number. function guess number pc pc(upper_bound): Example output format for guess number_pc_pc(10): A: I guess a number from 1 to 10 B: your number is: 5 A: My number is bigger B: your number is: 8 A: My number is smaller B: your number is: 6 A: Yeah, that is it Estimated on 3 attempts

Answer 1

Answer:
The desired code with comments and screenshot is given below. Please change package name before running the application.

//NumberGuessingGame.java

package com.kite.trade.backtest.client.abc;

import java.util.Random;

/**
* Function to call guessing function
*
* @author prass
*
*/
public class NumberGuessingGame {
   public static void main(String[] args) {
       int lowerLimit = (int) (Math.random() * 100);
       int upperLimit = (int) (Math.random() * 100 + lowerLimit);
       GuessNumber guess = new GuessNumber(lowerLimit, upperLimit);
       /**
       * Start of guessing game
       */
       System.out.println("A: I guess a number from " + lowerLimit + " to " + upperLimit);
       boolean guessedCorrectly = false;
       int guessedValue = lowerLimit + (upperLimit - lowerLimit) / 2;
       while (!guessedCorrectly) {
           System.out.println("B: Your number is: " + guessedValue);
           if (guess.checkNumber(guessedValue)) {
               guessedCorrectly = true;
           }
           String resp = guess.getInfoAboutNumber(guessedValue);
           System.out.println(resp);
           if (resp.endsWith("bigger")) {
               lowerLimit = guessedValue + 1;
           } else {
               upperLimit = guessedValue - 1;
           }
           guessedValue = lowerLimit + (upperLimit - lowerLimit) / 2;
       }
       System.out.println("Estimated on " + guess.checkNumberOdTrials() + " attempts");
   }
}

/**
* Class to handle guessing game logic
*
* @author prass
*
*/
class GuessNumber {
   private int desiredNumber;
   private int numberOfTrials;

   public GuessNumber(int lowerLimit, int upperLimit) {
       super();
       this.numberOfTrials = 0;
       Random r = new Random();

       this.desiredNumber = r.nextInt(upperLimit - lowerLimit) + lowerLimit;
   }

   /**
   * Checks whether number is guessed correctly or not
   *
   * @param num
   * @return
   */
   public boolean checkNumber(int num) {
       numberOfTrials++;
       if (this.desiredNumber == num) {
           return true;
       } else {
           return false;
       }
   }

   /**
   * gives number of trial happened till now
   *
   * @return
   */
   public int checkNumberOdTrials() {
       return this.numberOfTrials;
   }

   /**
   * returns the statement whether guess was correct or not, of not whether it has
   * to be less, more pr its correct
   *
   * @param guessedNumber
   * @return
   */
   public String getInfoAboutNumber(int guessedNumber) {
       String result = "A: My number is ";
       if (this.desiredNumber > guessedNumber) {
           result += "bigger";
       } else if (this.desiredNumber < guessedNumber) {
           result += "smaller";
       } else {
           result = "A: Yeah, that is it";
       }
       return result;
   }
}

SCREENSHOTS=>

OUTPUT=>

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