Java Programming for Complete Beginners - Java 16 - Step 07 - Functional Programming Terminology - Lambda Expression, St

This video tutorial introduces key concepts of functional programming, emphasizing the importance of first-class functions and the absence of state mutation. It explains Lambda expressions as a concise way to create methods, highlighting their flexibility in handling multiple lines of code. The tutorial also covers streams, detailing intermediate and terminal operations, such as filtering and reducing, to process data efficiently. By the end, viewers gain a foundational understanding of functional programming terminology and techniques.

What is a key characteristic of functional programming?

• It allows mutation of state.

• It focuses on how to perform tasks.

• It gives first-class status to functions.

• It does not support passing functions as parameters.

Which of the following best describes a Lambda expression?

• A shortcut for creating a method.

• A long form of writing a method.

• A method that always requires a return statement.

• A method that cannot have parameters.

What is a requirement for a Lambda expression with a single line of code?

• It must have multiple lines of code.

• It cannot have parameters.

• It must include a return statement.

• It does not need a return statement.

What is a stream in functional programming?

• A collection of numbers only.

• A source of objects.

• A type of Lambda expression.

• A method for sorting data.

Which operation is considered an intermediate operation on a stream?

• Printing each element.

• Finding the maximum element.

• Filtering elements.

• Reducing to a single result.

What is the result of a terminal operation on a stream?

• Another stream.

• A new Lambda expression.

• A list of elements.

• A single result or consumption of the stream.

Which of the following is NOT a terminal operation?

• Reducing to a single result.

• Printing each element.

• Filtering elements.

• Finding the sum of elements.