11.8.4. Lambda Expressions (Java 8+)

Try these first

1. 1.

   What is the syntax of a lambda expression?

   Hint

   Remember, it starts with parameters followed by '->'.

2. 2.

   What is a functional interface?

   Hint

   Think about common interfaces like Runnable.

3. 3.

   What do lambda expressions primarily allow in Java?

   • Object-oriented programming
   • Functional programming
   • Procedural programming

   Hint

   Consider the purpose of lambda expressions.

4. 4.

   True or False: A functional interface can have multiple abstract methods.

   • True
   • False

   Hint

   Think about what defines a functional interface.

5. 5.

   Implement a lambda expression that checks if a string is a palindrome.

   Hint

   Consider how to compare the string to its reverse.

6. 6.

   Create a lambda expression that calculates the factorial of a number using recursion.

   Hint

   Think about how recursion works in programming.