Question

Exercise #1

1. write a method extractdigitcount().which is specified as below.

• the method extractdigitcount()will receive an int as argument; and
• the method will return the count of all digit found in the given argument.

• Sample outcome:

Example #1 given an int of 1200

Return value: 4

           Example #2 given an int of -1200

Return value: 4

           Example #3 given an int of -359

                Return value: 3

In java program

Answer 1

//DigitCount.java
import java.util.Scanner;
public class DigitCount {
    static int extractdigitcount(int n){
        int count = 0;
        if(n<0){
            n = -1 * n;
        }
        while(n>0){
            count++;
            n = n/10;
        }
        return count;
    }

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int n;
        System.out.print("Enter an integer: ");
        n = scanner.nextInt();
        System.out.println(extractdigitcount(n));
    }
}