Question

I am currently doing homework for my java class and i am getting an error in my code.

import java.util.Scanner;
import java.util.Random;
public class contact {

  

   public static void main(String[] args) {
       Random Rand = new Random();
       Scanner sc = new Scanner(System.in);
       System.out.println("welcome to the contact application");
       System.out.println();
      
       int die1;
       int die2;
       int Total;
      
       String choice = "y";
while (choice.equalsIgnoreCase("y")) {
       System.out.println("roll the dice? (y/n): ");
       choice = sc.next();
       die1= Rand.nextInt(6) + 1;
      
       if (sc.hasNextDouble()) {
die1 = sc.hasNextInt();
sc.nextLine();
} else {
System.out.println("Error! number. Try again.\n");
sc.nextLine();
}
       System.out.println("Die 1 : " + die1);
       die2 = Rand.nextInt(6) + 1;
       System.out.println("Die 2 : " +die2);
       Total= die1 + die2;
       System.out.println("Total : " +Total);
       System.out.println("roll again? (y/n):");
       choice = sc.next();
   }

   }
  
}

i am trying to create validate the data that the user inputs and when i try to use sc.hasNextInt(); i keep getting an error from eclipse saying cannot convert from boolean to int.

Answer 1

thanks for the question, here is the updated code. Hope this is hat you where looking for.

========================================================================

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

public class contact {

    public static void main(String[] args) {
       Random Rand = new Random();
        Scanner sc = new Scanner(System.in);
        System.out.println("Welcome to the Contact Application");
        System.out.println("==================================");

        int die1;
        int die2;
       int Total;

        String choice = "y";
        do {
            System.out.print("Roll the dice? (y/n): ");
            choice = sc.nextLine();
            if (choice.equalsIgnoreCase("y")) {

                die1 = 1 + Rand.nextInt(6);
                die2 = 1 + Rand.nextInt(6);
                Total = die1+die2;
                System.out.println("Die 1: " + die1);
                System.out.println("Die 2: " + die2);
                System.out.println("Total: " + Total);
            }
        } while (choice.equalsIgnoreCase("y"));
    }

}

========================================================================

thanks a lot !