Consider the following code snippet:

if (i == 15.0) {
    System.out.println("true");
}

Which one of the following declarations of the variable i will compile without errors and print true when the program runs?

1. int i = 017;
2. int i = 15.0f;
3. int i = 15L;
4. int i = 15.0;

I will comment out the solution in the next few hours. Stay tunned.