Category : Trainings Course Content | Sub Category : Trainings Course Content | By Runner Dev Last updated: 2023-12-05 14:19:01 Viewed : 400

A comprehensive Java 8 features course would cover a range of topics to help participants understand and apply the new features introduced in Java 8. Here is a suggested course content outline:

• Overview of the evolution of Java
• Introduction to the key features introduced in Java 8
• Understanding the motivations behind the changes

• What are lambda expressions?
• Syntax and basic examples
• Java8 - Functional interfaces
• Java 8 - Type inference and target typing
• Java8 - Method references
• Java8 - Functional programming concepts in Java

• Introduction to the Stream API
• Java8 - Creating streams from different data sources
• Java8 - Intermediate and terminal operations
• Java8 - Common use cases for stream processing
• Java8 - Parallel streams for concurrent processing

• Java8 -Need for default methods
• Java8 - Syntax and usage of default methods
• Java8 - Multiple inheritance and conflict resolution
• Java8 - Backward compatibility and existing interfaces

• Java8 - Understanding method references
• Java8 - Types of method references
• Java8 - When and how to use method references
• Method references Comparison with lambda expressions

• Java8 - Introduction to the Optional class
• Java8 - Dealing with null values
• Java8 - Methods in the Optional class
• Java8 - Use cases and best practices for the Optional class

• Java8 Overview of the java.time package
• Java8 - Local date and time, time zones
• Java8 - Periods and durations
• Java8 - Formatting and parsing date and time

Java8 - Introduction to Completable Future

• Java8 - Asynchronous programming
• Java8 - Combining and chaining Completable Future instances
• Java8 - Exception handling in CompletableFuture

• Using Nashorn for scripting in Java applications

• The @FunctionalInterface annotation
• Java8 - The java.util.function package

• Java8 - What is the average salary of each department
• Java8 - Get the details of highest paid employee in the organization?
• Java8 - Introduction to the Nashorn JavaScript engine
• Java8 - Print the name of all departments in the organization
• Java8 - What is the average age of male and female employees?
• Java8- Get the details of youngest male employee in the product development department
• How many male and female employees are there in the organization
• Building real-world applications using Java 8 features
• Count the number of employees in each department in java8
•  sort a list in Java 8
• Sorting a Map in Java 8

 Java 8 is a significant release of the Java programming language, introducing several features and enhancements, most notably lambdas and the Stream API. Learning Java 8 is beneficial for a variety of individuals, including:

1. Java Developers:

   • Java developers who want to stay current with the latest features and enhancements in the Java language should learn Java 8. The introduction of lambdas and the Stream API significantly improves the way Java code is written, making it more concise and expressive.

2. Software Engineers:

   • Software engineers working with Java-based applications can benefit from Java 8`s features to write cleaner, more efficient, and modern code.

3. Web Developers:

   • Web developers using Java for server-side development can leverage Java 8 features to enhance the development of web applications. Streamlining code with lambdas and functional programming can lead to more maintainable and readable code.

4. Android Developers:

   • Android developers who use Java for Android app development can enhance their skills by learning Java 8. While Android primarily supports up to Java 8 syntax (as of my knowledge cutoff in January 2022), many features introduced in Java 8 are applicable.

5. Students and Beginners:

   • Students learning Java as their first programming language or individuals new to Java programming can start with Java 8. Learning the latest version ensures they are introduced to the most up-to-date language features.

6. Technical Managers and Architects:

   • Technical managers and software architects should be aware of the capabilities introduced in Java 8 to make informed decisions about adopting it in their projects. Understanding lambdas and the Stream API can influence design decisions.

7. Enterprise Application Developers:

   • Developers working on enterprise-level applications, especially those dealing with large datasets, can benefit from the parallel processing capabilities of the Stream API in Java 8.

Prerequisites for Learning Java 8:

• Basic Java Knowledge:

  • Familiarity with the fundamentals of Java programming, including syntax, data types, control structures, and object-oriented programming concepts.

• Understanding of Object-Oriented Programming (OOP):

  • A solid understanding of OOP principles is crucial, as Java is an object-oriented programming language.

• Experience with Java SE 7 (Optional):

  • While not mandatory, having some experience with Java SE 7 can provide context for the improvements introduced in Java 8.

• Interest and Motivation:

  • Having an interest in Java programming and the motivation to learn new language features is essential for a successful learning experience.

What You Can Learn with Java 8:

1. Lambda Expressions:

   • Understanding the syntax and usage of lambda expressions to write more concise and functional code.

2. Functional Interfaces:

   • Exploring functional interfaces and how they relate to lambda expressions.

3. Streams API:

   • Learning the Stream API for processing collections of data in a functional style, including the use of map, filter, and reduce operations.

4. Default Methods:

   • Understanding the concept of default methods in interfaces and how they enable backward compatibility.

5. Optional Class:

   • Exploring the Optional class to handle potentially nullable values more effectively.

6. Date and Time API:

   • Learning the new Date and Time API, which provides a more comprehensive and immutable alternative to the legacy java.util.Date and java.util.Calendar classes.

7. Nashorn JavaScript Engine:

   • Introduction to the Nashorn JavaScript engine, which allows the execution of JavaScript code within the Java Virtual Machine (JVM).

8. Concurrency Enhancements:

   • Exploring enhancements to the concurrency APIs, including the CompletableFuture class for asynchronous programming.

9. New Collectors:

   • Learning about new collectors in the Collectors utility class for aggregating elements of a stream.

Java 8 marked a significant shift in Java`s approach to programming by introducing functional programming constructs. Learning Java 8 features can enhance a developers ability to write cleaner, more modular, and expressive code.