JavaChallenge38

1. 1
2. 0.9999999999999999
3. 1.0000000000000001
4. 0.9999999999999999D

Try to solve the challenge by yourself first.

The answer should be 1 but that’s not the case the answer is 0.9999999999999999 . Let’s see the bytecode —

public class JavaChallenge38 {
    public JavaChallenge38() {
    }

    public static void main(String[] args) {
        System.out.println(0.9999999999999999D);
    }
}

So, at compile time only all 0.1 will be added, but it’s weird; so many of you will get a question —

Is floating point math broken???

Please go through the following links, it will help you to understand the entire concept —

Is floating point math broken?

Why is 0.1 + 0.2 Not Equal to 0.3 in Most Programming Languages?

Thanks. Don’t forget to upvote.