How Many Digits Are Present in the Number – Java Example

Algorithm for Digits Are Present in the Number:

step 1: Set c=0

step 2: Read num

step 3: Repeat through step-5 while num greater than 0

step 4: c=c+1

step 5: num=num/10

step 6: Print c

Step 7: Exit

Here is the Java Example for Digits Are Present in the Number:

import java.util.Scanner; 
 public class DigitCount 
 { 
                   int count(int num) 
            { 
                   if(num>=0 && num<=9) 
                         return 1; 
                   else 
                     return 1+count(num /10); 
             } 
                public static void main(String args[]) 
                  { 
                          int c,num; 
                    Scanner sl=new Scanner(System.in); 
                    System.out.print("Enter A Number : "); 
                    num=sl.nextInt(); 
                    DigitCount d=new DigitCount(); 
                    c=d.count(num); 
                    System.out.println("Number of Digit is "+c);  
                  } 
 }