22.9. Lambda Expressions in Multithreading

Try these first

1. 1.

   What is a lambda expression?

   Hint

   Think about how we can use it in a sentence.

2. 2.

   Provide a basic syntax for creating a thread using lambda expressions.

   Hint

   Look at how we define the behavior inside `Thread`.

3. 3.

   What is the syntax to create a new thread using a lambda expression?

   • new Thread(() -> { // code }).start();
   • new Thread({ () -> code }).start();
   • Thread.start(() -> code);

   Hint

   Recall the structure discussed in class.

4. 4.

   True or False: Lambda expressions increase the amount of boilerplate code needed for threading.

   • True
   • False

   Hint

   Consider how we used to write threading code.

5. 5.

   Create a program using lambda expressions to create multiple threads that print integers 1 to 5 in separate threads.

   Hint

   Consider how each thread captures the value of 'i'.

6. 6.

   Discuss the potential pitfalls of using lambda expressions in a multithreading context, especially related to variable scope and exceptions.

   Hint

   Recall the rule about variable finality and count how exceptions are handled in multithreading.