@dinglemouse: There is also a nice variation of this great kata: https://www.codewars.com/kata/next-smaller-number-with-the-same-digits

@Mrityunjay Bhardwaj: It was me, who translated this kata to Java. As you can see below: There was a comment "Java-Translation kumited!"...

There is no problem in the kata. (25 warriors did it in Java until this moment). And like dinglemause said it before: There is no biggertest for 1286608618.
I tested it last minute, if such test would be succeed: Without problems with the solution.

Have you you written the input value to the console for checking? Maybe your code changed a value in a wrong way?

Look a few comments down below: Steffen is the one who translated it and he has certainly a much better command of Java than me.

@Mrityunjay Bhardwai.

FYI - I have just moments ago successfully completed the Java version of this Kata. There are no problems at all.

You said your code failed on a Java test called BiggerNumber with input of 1286608618.

• But there is no such test in the Java JUnit. (For Java the test is called biggerTests)
• And there is no such test input same as that either either

So I don't know what you are looking at... but it not the current Java submission test cases

@Mrityunjay Bhardwai, I know you think you are returning the correct result but it might be worth triple-checking that it's not you returning that -1. Sometimes the JUnit tests some of Katas are written wrong and the actual/expected values are reversed. It can lead to confusing situations like this.

(Not saying that it the case here... but it might be)

I would post under the Java translator comment to ask for more direct support; sorry for the little help here.

Your tests seem correct, but do not get where you get the -1 expected result.

Thank you for your kind attention, the time spent on my katas and this kind feed; regrettably my Java is quite weak, so better luck writing under the post of the Java translator down below.

Have a nice day :)

Thank you for your polite feed; I assume you are using C, so you have definitely better luck posting under the comment of the translator in that language down below.

Cheers.

Look, the pre-giving solution is:

public class CountDig {
    
    public static int nbDig(int n, int d) {
        // your code
    }
}

There was no error in that!-)

You are mistaking somewhere. Here are the "Example test cases" in Java:

import static org.junit.Assert.*;

import org.junit.Test;


public class CountDigTest {
    private static void testing(int actual, int expected) {
        assertEquals(expected, actual);
    }
    @Test
    public void test() {
        System.out.println("Fixed Tests nbDig");
        testing(CountDig.nbDig(5750, 0), 4700);
        testing(CountDig.nbDig(11011, 2), 9481);
        testing(CountDig.nbDig(12224, 8), 7733);
        testing(CountDig.nbDig(11549, 1), 11905);       
    }
}
Look at the code of your function you gave above. It's you who called it "nb_dig".

381 guys passed the Java kata so I am pretty sure there are no errors.