I've done task but I don't understand one thing

Question about the task

Horse racing

Java Core, Level 6, Lesson 5

Under discussion

This is my works code in IDE:

public static int calculateHorsesFinished(List<Horse> horses) throws InterruptedException {
       int finishedCount = 0;
for(Horse horse: horses){
    if(horse.isFinished){
        finishedCount++;
    }else {
        System.out.println("Waiting for " + horse.getName());
        horse.join();
    }
}

Why with isFinished CodeGym doesn't accept? And what is the difference between horse.isFinished and horse.isFinished(). Both work the same in IDE.

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Thomas

Level 41 , Bayreuth, Germany

27 May 2021, 09:15

To answer that we probably would need to know some internals of the validator. I assume that (for this task) the validator extracts the calculateHorsesFinished methods code and runs that against some classes on its server. If that assumption is correct, then Horse is no nested class anymore but probably a regular external one (or maybe in the same package, but that doesn't matter at all). The calculateHorsesFinished method has in that case no access to the isFinished field anymore and the validator will throw an error.