Thread: Mixed Fraction JAVA

Not working

help me please

import java.util.Scanner;
 
public class FractionTester {
 
    public static void main(String[] args) {
        MixedFraction operand1, operand2;
 
        operand1 = enterFractionValue("fraction 1: ");
        operand2 = enterFractionValue("fraction 2: ");
 
        // place code below
 
    }
 
 
    private static MixedFraction enterFractionValue(String operand) {
    	Scanner keyboard = new Scanner(System.in);
    	System.out.println("Form of " + operand);
    	System.out.println("   (a) Fraction: whole value");
    	System.out.println("   (b) Fraction: with numerator and denominator");
    	System.out.println("   (c) Mixed Fraction");
    	char choice;
    	do {
    		System.out.println("Enter choice: ");
    		choice = Character.toLowerCase(keyboard.nextLine().charAt(0));
    	} while (choice != 'a' && choice != 'b' && choice != 'c');
    	System.out.println();
 
    	MixedFraction f;
    	switch(choice){
    		case 'a':
    			System.out.print("Enter the whole value: ");
    			int whole = keyboard.nextInt();
    			f = new MixedFraction(whole,0,1);
    			break;
    		case 'b':
    			f = new MixedFraction(0,inputRegularFraction(keyboard));
    			break;
    		default:
    			int w;
    			do {
    				System.out.print("Enter whole part: ");
    				w = Integer.parseInt(keyboard.nextLine());
    			} while (w == 0);
    			f = inputRegularFraction(keyboard);
    			return new MixedFraction(w,f);
    	}
    	return f;
    }
 
    private static Fraction inputRegularFraction(Scanner kb){
    	System.out.print("Enter numerator: ");
    	int n = Integer.parseInt(kb.nextLine());
    	int d;
    	do {
    		System.out.println("Enter denominator: ");
    		d = Integer.parseInt(kb.nextLine());
    	} while (d == 0);
    	return new Fraction(n,d);
    }
 
}