intester.java

public class intester {
    public static void main (String args[]) {
        int testInt = 135;
        int sum = 0;
        sum = testInt%10;           //adds 5 to the sum
        testInt=testInt/10;         //devides the test int by 10
        sum = sum + testInt%10;     //adds 3 to the sum
        testInt=testInt/10;         //devides the test int by 10
        sum = sum + testInt%10;     //adds 1 to the sum
        System.out.println(sum);    //returns 9
    }
}