Question

Example int i=185;

Then I want to get that ‘i’ contains 3 digits and those digits are 1,8, and 5.

Answer 1

1st solution:

/**
 * Using Integer/String classes functionality
 */
public class Shweta {

    private static Integer i = 185;

    public static void main(String... args) {
        String iStr = i.toString();
        for (char digit : iStr.toCharArray()) {
            System.out.println(digit);
        }
        System.out.println("Length is: " + iStr.length());
    }

}

2nd solution:

/**
 * Doing that in a 'homework' way
 */
public class ShwetaNoCheats {

    private static Integer i = 185;

    public static void main(String... args) {
        int length = 0;
        while (i != 0) {
            System.out.println(i - (i / 10) * 10);
            i /= 10;
            length++;
        }
        System.out.println("Length is: " + length);
    }
}