Question

Add on to the java code below to include a welcome message and menu for the user. The user should be able to decide when to exit the program ( the user can enter his data included in code below ), and then can either exit, OR enter another one. Need a loop structure in this code.

import java.util.Scanner;
public class ReduceFraction {
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
System.out.print("Enter a numerator: ");
int n = in.nextInt();
System.out.print("Enter a denominator: ");
int d = in.nextInt();
if (n < d) {
System.out.printf("%d / %d is a proper fraction\n", n, d);
} else if (n % d == 0) {
System.out.printf("%d / %d is an improper fraction and it can be reduced to %d\n", n, d, n/d);
} else {
System.out.printf("%d / %d is an improper fraction and its mixed fraction is %d + %d / %d\n", n, d, n/d, n%d, d);
}
}
}

Answer 1

Java code

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

package shape;

import java.util.Scanner;

public class ReduceFraction {

   public static void main(String[] args) {
       // TODO Auto-generated method stub
       Scanner in = new Scanner(System.in);
       System.out.println("Welcome to fraction find: ");
       char ch='y';
      
      
      
       while(ch=='y')
       {
          
               System.out.print("Enter a numerator: ");
               int n = in.nextInt();
               System.out.print("Enter a denominator: ");
               int d = in.nextInt();
               if (n < d) {
               System.out.printf("%d / %d is a proper fraction\n", n, d);
               } else if (n % d == 0) {
               System.out.printf("%d / %d is an improper fraction and it can be reduced to %d\n", n, d, n/d);
               } else {
               System.out.printf("%d / %d is an improper fraction and its mixed fraction is %d + %d / %d\n", n, d, n/d, n%d, d);
               }
      
           System.out.print("Do u want to enter another set of numbers?(press y for again): ");
           ch=in.next().charAt(0);
          
       }
      
       System.out.println("--PROGRAM ENDS--");
          

   }

}

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

Output