Intro

What is a JRE?

Jvm

Where can I get a JRE?

Java Development Kit (JDK)

Summary

Intro

What is the JDK?

What is the Java Runtime Environment (JRE)?

What is the Java Virtual Machine?

What is the Java Development Kit?

How does Java achieve the ability to run on so many different devices and operating systems?

Why is Java slow?

Is Java still slow?

Is Java slower than other programming languages?

Conclusion

Intro

Oracle JDK Releases

JDK 20

Language Features

JDK Library Enhancements

To learn more about each JEP

48 smaller changes in the release notes

Where to get JDK 20

Editor

Why We Are Using vs Code

Compiler

Download Jdk

Java 19 or Java 17

Vs Code

Verify if You Have Jdk

Check if You Have Java Installed

Environment Variables

Java Development Kit Versions

Versions of the JDK

What version of the JDK should I use?

What happens when a new JDK version is released?

JDK Version History

Why do large companies use the long-term support version?

Why JDK 11?

Long-term support versions

My recommendation

Conclusion

The Java commnity is alienated

A surprise announcement about the Oracle JDK

A possible solution from OpenJDK

The Oracle OpenJDK update issue

An explosion of OpenJDK vendors

Yet another announcement from Oracle

An angry reaction from the Java community

Some interesting conclusions

Intro

Download JDK

How to Download Java JDK on Windows 10

How to check Java JDK version

How to add JAVA_HOME environment variable in Windows 10

How to set PATH environment variable

How to set the JAVA_HOME environment variable

How to check Java version on windows 10

How to check Javac Command

Conclusion

Introduction

What is Java?

What is Java Development Kit (JDK )?

How do JRE, JVM works together?

The latest version of JDK.

Java Lambda expression.

Key features of JDK 9

Teaser

Intro

OpenJDK

OpenJDK - Place For A Community

OpenJDK - The JDK Project

OpenJDK - JDK Enhancement Proposals

OpenJDK - That's it?!

NOT OpenJDK - Java Community Process

NOT OpenJDK - Binaries, Distributions, Vendors

NOT OpenJDK - Long-Term Support

Outro

Intro

430 - String Templates (Preview)

431 - Sequenced Collections

439 - Generational ZGC

440 - Record Patterns

441 - Pattern Matching for switch

442 - Foreign Function & Memory API (Third Preview)

443 - Unnamed Patterns and Variables (Preview)

444 - Virtual Threads

445 - Unnamed Classes and Instance Main Methods (Preview)

446 - Scoped Values (Preview)

448 - Vector API (Sixth Incubator)

449 - Deprecate the Windows 32-bit x86 Port for Removal

451 - Prepare to Disallow the Dynamic Loading of Agents

452 - Key Encapsulation Mechanism API

453 - Structured Concurrency (Preview)

Conclusion

Outro

Intro

Setup Steps

Download installer

Installing

Installation folder and bin path

Adding bin path to System environment variables

What is the JDK?

How to download the JDK?

How to install the JDK

What is the Java Compiler?

How to locate the JDK

How to tell Java where to look for the compiler?

How to tell your computer where to look for the JDK?

How to create an environment variable?

Conclusion

_"Is the JDK Flight Recorder available for free in all OpenJDK versions?"_

_"In order to make use of JFR, are there any default events included, or do you have to program your own custom events?"_

_"Does JFR have support for virtual threads?"_

Why build your own JDK?

How does it work?

Choose a JDK branch

Downloading the JDK

Ember repository example

Download X11 libraries

Create a JAVA_HOME

Compiling the JDK

Final syntax

Conclusion

Intro

Long-Term Support - Every 3 years

Long-Term Support - Every 2 years

Oracle's JDKs - Oracle's OpenJDK vs Oracle JDK

Oracle's JDKs - Free Oracle JDK

Oracle's JDKs - Free Support?

Bits & Bytes