Modern Java Versions Specifics

Question 1

What is a parameterized or generic type

Question 2

Can we use parameterized types in exception handling

Question 3

What is Autoboxing and what are its advantages/pitfalls

Question 4

What is a wildcard parameterized type

Question 5

Problems Enum type solves (comparing to “public static int” enum pattern)

Question 6

Can we add something to List<?>

Question 7

What is method reference (Java 8)

Question 8

What is default metod (Java 8)

Question 9

What is stream API (java 8)

Question 10

What is Lambda expression (Java 8)

Question 11

What are Annotations and which predefined by the language specification does one know (@Deprecated, @Override, @SuppressWarnings)

Question 12

How to create custom annotation? What is retention type?

Question 13

How would you create your own annotation with a specific retention policy (e.g. Runtime) behavior

Question 14

What happens with lambda after compile time?

Question 15

What are the new features of Java 9?