WHy is this code giving me a result from the previously run codes on my eclipse?

Question

public class Boy {
void cackle() {
System. out.println("haha");
}
}
class MyClass {
public static void main(String[] args) {
Boy Tobi = new Boy();
Tobi.cackle();
}
}

Answer 1

Go to your previous Projects and Close them

Answer 2

I have tried that...still gives me prints out the result of my previously run code