(#4) Tricky Java Questions for Interviews

Motto: About class loaders and nulls...

Q1: Which of the following class loaders is (are) written in C language to be as fast as possible?

Select one or multiple options:

1. System class loader
2. Platform class loader
3. Bootstrap class loader

Q2: What's the output printed to console?

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

Q3: Enumerate all differences between LocalDateTime and Instant. Both classes were introduced in Java 8.