To find Count Number of Digits in an Integer, we are perform following step.
- Initial a default variable count.
- To count number of digits of input value n.
- Inside While loop first check input value not equal to zero.
- Now divide the input value n by 10 and storing from n.
- here how many times while loop execute at that times count will be increment.
- Now print count value.
public class NumberOfDigits {
public static void main(String[] args) {
int count = 0, n = 1256;
while (n != 0) {
n = n / 10;
++count;
}
System.out.println("Number of digits :- " + count);
}
}
Output :-
Number of digits :- 4