Java Program To Count Number Of Digits In An Integer

Chapter: Java Basics Last Updated: 29-08-2017 15:03:38 UTC

Program:

            /* ............... START ............... */
                
public class JavaCountNumberOfDigits {

	public static void main(String[] args) {

		int count = 0, number = 3452;

		while (number != 0) {
			// number = number/10
			number /= 10;
			++count;
		}

		System.out.println("Number of digits: " + count);
	}

}
                /* ............... END ............... */
        

Output

Number of digits: 4

Notes:

  • In this program, while loop is iterated until the test expression num != 0 is evaluated to 0 (false).

Tags

Count Number Of Digits In An Integer, Java, Basics

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