Question

Implement a program to display each digit from the given an integer. Your program should satisfy the following requirements

• The program should have a function called public static void displayDigit(String number) {...} that print all digits from the given number
• Your program should have a public static void main method to test your method displayDigit
• Your program should use Scanner class to accept input from the end-user

Sample runs:

If the end-user enter 1234, the program should return 1,2,3,4

If the end-user enter 45632, the program should return 4,5,6,3,2

Answer 1

import java.util.Scanner;

public class DisplayDigits {

    public static void displayDigit(String number) {
        for (int i = 0; i < number.length(); i++) {
            if (Character.isDigit(number.charAt(i))) {
                System.out.print(number.charAt(i) + ", ");
            }
        }
        System.out.println();
    }

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        System.out.print("Enter a string: ");
        String s = in.nextLine();
        displayDigit(s);
    }
}