Question

(JAVA programming) Guess Number program

Answer 1

Answer:

The following are the program in the Java Programming Language.

import java.util.Random; //import package

import java.util.Scanner; //import package

//define a class

public class GuessNumber {

   //define a main method

   public static void main(String[] args)

   {

       //create object of the Scanner class

       Scanner cs = new Scanner(System.in);

       //print message

       System.out.println("Guess the secret number\n");

       //print message

       System.out.print("Enter the maximum value for the secret number: ");

       //get input in the integer variable through scanner class object

       int maxNum=cs.nextInt();

       //create object of the Random class

       Random ran = new Random();

       //declare an integer variable that store random number  

       int guessed = 1+ran.nextInt(maxNum);

       //set the while loop

       while (true)  

       {

           //print message

           System.out.println("\nA new secret number has been chosen.");

           //set two integer variables to 0

           int user = 0;

           int count = 0;

           //set the while loop

           while (user != guessed)  

           {

               //print message

               System.out.print("Enter guess: ");

               //get input in the variable from user

               user = cs.nextInt();

               //increment the variable by 1

               count++;

               //check that the user is less than guessed

               if (user < guessed)  

               {

                   //then, print message

                   System.out.println("low, try again.");

               }

               //check that user is greater than guessed

               else if (user > guessed)  

               {

                   //then, print message

                   System.out.println("high, try again");

               }

           }

           //print message with count

           System.out.println("You won in " + count + "!");

           //print message and get input

           System.out.print("\nPlay again? (Y/N)");

           cs.nextLine();

           String again = cs.nextLine();

           //check that input is y

           if(again.equalsIgnoreCase("y"))

           {

               //then, loop again iterates

               continue;

           }

           //otherwise, loop is break

           else{

               break;

           }

       }

   }

}

Explanation:

The following are the description of the program :

• Firstly, we import the required packages and define the class 'GuessNumber'.
• Inside the class, we create the object of the scanner class and the random class then, get input from the user through scanner class object and generate random number through the random class object.
• Then, set the while infinite loop in which we declare two integer data type variables and assign them to 0 then, set while loop inside the infinite loop that iterates when the 1st variable is not equal to the second one then, get input from the user through scanner class object.
• Then, check that input number is less than the random number then, print message otherwise, again check that input number is greater than the random number then, print message or if both numbers are equal then print the message with the count.
• Finally, the program asks for play again, if the input is 'y' then, infinite loop again iterates otherwise the infinite loop is break.