CalcNumLength

/**
 *
 * @author winf103738
 */
public class Zahl {

    static int zahl = 1000;

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        System.out.println(calcNumLength(zahl));
    }

    private static int calcNumLength(int num){
        int count = 0;
        while (num >= 10) {
            num = num / 10;
            count++;
        }
        if(num > 0){
        count++;
        }
        return count;
    }

}