Divisió recursiva

package es.sh.wa.common.authentication;

import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;

@RunWith(JUnit4.class)
public class Test {

    @org.junit.Test
    public void testIterative() {
        int a = -11;
        int b = 3;
        int result = divIter(a, b);
        System.out.println(result);
        System.out.println(a);
    }
    
    @org.junit.Test
    public void testRecursive() {
        int a = -11;
        int b = 2;
        int result = divRecur(a, b, 0);
        System.out.println(result);
        System.out.println(a);
    }
    
    private int divIter(int a, int b) {
        a = Math.abs(a);
        b = Math.abs(b);
        int i = 0;
        for (; a >= 0; i++) {
            a -= b;
        }
        
        return --i;
    }
    
    private int divRecur(int a, int b, int count) {
        a = Math.abs(a);
        b = Math.abs(b);
        a -= b;
        if (a <= 0) {
            return count;
        }
        else {
            return divRecur(a, b, ++count);
        }
    }
    
}