Question

JAVA

Write a number guessing game that will generate a random number between 1and 20 and ask the user to guess that number.

• The application should start by telling the user what the app does.
• You should then create the random number and prompt the user to guess it.
• You need to limit the number of times that the user can guess to 10 times.
• If the user guesses the number, display some message that tell them that they did it.
  • Else, tell the user to try again
• You should keep track of how many times they tried guessing and then display the number of times it took them to guess it if they did.
• If they exceed the number of allowed trials, display a message telling them that and display the number that you created.
• Display the remaining number of trials every time they guess.
• Tell the user if they are above or below the number.
• If they are close to guessing the number (about 2 numbers off) you should tell the user that they are very close to guessing the number.

Answer 1

Source Code:

import java.util.Scanner;
import java.util.Random;

class ex
{
   public static void main(String[] args) {
       Scanner input=new Scanner(System.in);
       Random rand=new Random();
       int min=1,max=20;
       int count=10,tries=0;
       System.out.println("Enter a number to guess the number between 1 and 20");
       int rand_num=(rand.nextInt(max)) + min ;
       int guess=0;
       while(count>0)
       {
           ++tries;
           --count;
           guess=input.nextInt();
           if(guess==rand_num)
               break;
           else if(rand_num-guess ==2 || rand_num-guess == -2 || rand_num-guess ==1 || rand_num-guess == -1)
               System.out.println("Incorrect, you are very close to number, you have "+count+" trials remaining");
           else if(guess>rand_num)
               System.out.println("Incorrect, your guess is high and you have "+count+" trials remaining");
           else
               System.out.println("Incorrect, your guess is low and you have "+count+" trials remaining");
       }
       if(count==0)
           System.out.println("You reached maximum trials and the number is "+rand_num);
       else
           System.out.println("You guessed correctly in "+tries+" tries. The number is "+rand_num);
   }
}

Sample input and output: