Question

Exercise 1 JAVA LANGUAGE

• The system generates a random number from a given range, say 1 to 100.
• The user is prompted to enter their given number in a displayed dialogue box.
• The computer then tells if the entered number matches the guesses number or it is higher/lower than the generated number.
• The game continues under the user guessing the number.
• Throw an exception if user does enter an integer – have user reenter

Answer 1

Code:

//as we are using Scanner and random classes we have to
//import this package
import java.util.*;
//class name is Game,So the name of the file should be Game.java
class Game{
   public static void main(String[] args) {
       //creating instances for random and scanner
       Random rand = new Random();
       Scanner s = new Scanner(System.in);
       //variables declared
       int number,guess;
       //the generated random number is stored in variable number
       number= rand.nextInt(100);
       System.out.println("Guess the number:");
       //an infinite loop which only breaks when
       //user guesses the number
       while(true){
           //try block
           try{
               //taking user input
               guess=s.nextInt();
               if(guess<number){
                   System.out.println("The number you entered is lower than the generated number, Enter again");
               }
               else if(guess>number){
                   System.out.println("The number you entered is Higher than the generated number, Enter again");
               }
               //if the user guesses the number correctly, the loop breaks
               else{
                   System.out.println("Yay, You guessed the number correctly,The number is "+number);
                   break;
               }
               //exception is handled here
           }catch(InputMismatchException e){
               System.out.println(e);
               //asking the user to input again
               System.out.println("You didnt entered an Integer,Enter again: ");
               //for storing the new line character
               s.nextLine();
           };
       }
   }
}

Output:

Code Screenshot:

Code Snippet:

//as we are using Scanner and random classes we have to
//import this package
import java.util.*;
//class name is Game,So the name of the file should be Game.java
class Game{
        public static void main(String[] args) {
                //creating instances for random and scanner
                Random rand = new Random();
                Scanner s = new Scanner(System.in);
                //variables declared
                int number,guess;
                //the generated random number is stored in variable number
                number= rand.nextInt(100);
                System.out.println("Guess the number:");
                //an infinite loop which only breaks when
                //user guesses the number
                while(true){
                        //try block
                        try{
                                //taking user input
                                guess=s.nextInt();
                                if(guess<number){
                                        System.out.println("The number you entered is lower than the generated number, Enter again");
                                }
                                else if(guess>number){
                                        System.out.println("The number you entered is Higher than the generated number, Enter again");
                                }
                                //if the user guesses the number correctly, the loop breaks
                                else{
                                        System.out.println("Yay, You guessed the number correctly,The number is "+number);
                                        break;
                                }
                                //exception is handled here
                        }catch(InputMismatchException e){
                                System.out.println(e);
                                //asking the user to input again
                                System.out.println("You didnt entered an Integer,Enter again: ");
                                //for storing the new line character
                                s.nextLine();
                        };
                }
        }
}