Lambda Expressions in Java

سرفصل های دوره

Lambda expressions were added to Java more than 10 years ago. This course explains how you can write lambdas, how you can create your own and compose them, and how to use them to improve the readability of your code.

1. Course Overview

1. Course Overview

02. Writing Lambda Expressions with Functional Interfaces

01. Introducing the Course and Its Agenda

02. Who Are You and What Do You Need to Know to Follow This Course

03. Defining the Types of Lambda Expressions

04. Defining Functional Interfaces

05. Using the @FunctionalInterface Annotation

06. Demo - Writing a Consumer to Print the Elements of a List

07. Demo - Using a Predicate to Filter the Content of a List

08. Demo - Writing a Supplier and Invoking Its Method

09. Demo - Using Functions to Map Objects to Other Objects

10. Util Function Package

11. Are Lambdas Objects

12. Demo - Capturing External Values from a Lambda

13. Demo - Using Non-Denotable Types to Creates Immutable Wrappers

14. Module Wrap Up

03. Composing and Chaining Lambda Expressions

01. Introducing the Module and its Agenda

02. Demo - Designing a OR Operation on Predicates

03. Demo - Implementing the OR Operation on Predicates

04. Demo - Designing and Implementing the AND Operation on Predicates

05. Demo - Protecting Your Lambdas Against Errors

06. Demo - Designing and Implementing the NOT Operator on Predicates

07. Demo - Analyzing the Predicate Interface from the JDK

08. Demo - Chaining Functions of the Same Type

09. Demo - Chaining Functions of Different Types in the Right Order

10. Demo - Composing Functions

11. Demo - Analyzing the Function Interface from the JDK

13. Wrapping up the Use of Default and Static Methods With Lambdas

14. Demo - Working with the For Each Method of Iterable and Map

15. Demo - Chaining Consumers and BiConsumers

16. Module Wrap Up

4. Using Method References to Write Lambda Expressions

1. Introducing the Module and Its Agenda

2. Writing Your First Method Reference

3. Calling Constructors and Methods with Method References

4. Examining the Four Types of Method References

5. Demo - Writing Method References Efficiently with Your IDE

6. Demo - Writing Array Constructors with Method References

7. Demo - Creating Method References on Your Own Interfaces

8. Module Wrap Up

05. Creating Comparators Using Method References

01. Introducing the Module and its Agenda

02. Comparing Object Using Comparable and Comparators

03. Demo - Writing a First, Simple Comparator

04. Demo - Creating a Factory of Generic Comparators

05. Demo - Chaining Comparators Using Default Methods

06. Demo - Refactoring the Chaining of Comparators Using Functions

07. Demo - Creating a Natural Order Comparator

08. Demo - Reversing an Existing Comparator

09. Demo - Protecting Your Comparators against Null Values

10. Demo - Analyzing the Comparator Interface from the JDK

11. Module Wrap Up

06. Designing a Text File Analyzer Using Lambdas

01. Introducing the Module and Its Agenda

02. Demo - Reading the Example File Line by Line

03. Demo - Analyzing the Structure of the Data to Map It to Records

04. Demo - Handling Corrupted Lines and Bad Formats

05. Demo - Refactoring the Analysis of a Line of the File

06. Demo - Using Records and Lambda to Make Your Code Cleaner

07. Demo - Getting the Company with the Highest Revenue

08. Demo - Getting the Company with the Highest Cumulated Revenue

09. Demo - Making Your Code Meaningful with Records

10. Demo - Improving Readability with Factory Methods

11. Module Wrap Up

12. Course Wrap Up

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