Lambdas in Java - From Zero to Hero

Lambdas in Java - From Zero to Hero

Join the most comprehensive course that covers Lambdas and Streams introduced in Java 8.

There are lots of exercises (along with the solution) at the end of a section that will help you gain confidence.

Using numerous real-life examples, you will learn:

• What the Strategy pattern is

• What kinds of problems do Anonymous classes solve?

• Why do we need Lambda expressions?

• How can Lambda expressions help us in writing concise code?

• What are higher-order functions?

• Deep dive into how Lambda expressions are implemented behind the scenes and -

  1. Understand how to look at byte code using javap

  2. Understand the role of the invokedynamic byte code instruction

  3. What are Method Handles

• Commonly used functional interfaces like Predicate, Function, Supplier, Consumer, BiConsumer  -

  1. How and where to apply them?

  2. How are they used internally in the JDK library?

• Function composition

• Method references

• Explore the Comparator interface

• Numerous methods in the Stream API like - filter, map, collect, sorted, distinct

• Understanding what a stream is

• Understanding the important characteristics of a stream

• Optional API and the right way to use them

• Short-circuiting operations in the Stream pipeline

• Understand why we need Primitive Streams

• Reduction operations in the Stream pipeline and the importance of identity in Reduction

• Explore the Collectors API

• Explore flatMap and other sources of creating Streams

• Explore Parallel Streams -

  1. What is Moore's law?

  2. Why do we need Parallel streams?

  3. When should we use Parallel streams?

  4. What is the infrastructure behind the scenes when we use Parallel streams?

  5. How does Reduction work in parallel streams?

  6. Role of the Spliterator

• Learn how to debug and visualize Java 8 Streams with Eclipse & Intellij

and more!

Students completing the course will have a solid, in-depth knowledge of writing concise code using many features that have truly revolutionized how we write code in Java.

What if you have questions?

I offer full support, 7 days a week, answering any questions you have.

What version of Java should you use?

I am using Java 14 for all the demos since that is the latest version when recording this course. I would urge you to use the latest version of Java. However, the focus will be on Lambdas, Streams, and lots of other features introduced in Java 8 as mentioned above.

Master Java 8 Lambda Expressions and the Stream API

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What you will learn

• Starting from the basics, gain in-depth knowledge about Lambdas and Streams using lots of examples
• Explore a variety of functional interfaces
• Understand how Lambda expressions are implemented in the JDK by looking at the byte code

Rating: 4.73913

Level: Intermediate Level

Duration: 18.5 hours

Instructor: Ajay Iyengar