Downloading and Installing JDK on Mac

This section describes how to download and install JDK 13 on a Mac computer

To learn Java, you need to have a copy of JDK (Java Development Kit) installed on your machine. If you are a Mac computer user, you can follow this tutorial to download and install JDK 20 on your Mac computer.

1. Go to Oracle Java SE download website at

2. Click "JDK 20 > macOS" tab.

3. Click on the "jdk-20_macos-x64_bin.dmg" link in the "x64 DMG Installer" line to download the installation file to your "Downloads" directory.

4. Double-click on the "jdk-20_macos-x64_bin.dmg" file to install it.

To test the installation, open a command window to try the java command.

herong$ java -version
java version "20.0.1" 2023-04-18
Java(TM) SE Runtime Environment (build 20.0.1+9-29)
Java HotSpot(TM) 64-Bit Server VM (build 20.0.1+9-29, mixed mode, sharing)

Cool, I have successfully installed JDK 20 on my macOS computer!

Table of Contents

 About This Book

JDK - Java Development Kit

Downloading and Installing JDK on Mac

 Downloading and Installing JDK on Windows

 Adding JDK "bin" Directory to Path Setting

 Downloading and Installing JDK on Linux

 Writing My First Java Program

 JDK Documentation Installation

 Execution Process, Entry Point, Input and Output

 Primitive Data Types and Literals

 Control Flow Statements

 Bits, Bytes, Bitwise and Shift Operations

 Managing Bit Strings in Byte Arrays

 Reference Data Types and Variables

 Enum Types and Enum Constants

 StringBuffer - The String Buffer Class

 System Properties and Runtime Object Methods

 Generic Classes and Parameterized Types

 Generic Methods and Type Inference

 Lambda Expressions and Method References

 Java Modules - Java Package Aggregation

 Execution Threads and Multi-Threading Java Programs

 ThreadGroup Class and "system" ThreadGroup Tree

 Synchronization Technique and Synchronized Code Blocks

 Deadlock Condition Example Programs

 Garbage Collection and the gc() Method

 Assert Statements and -ea" Option

 Annotation Statements and Declarations

 Java Related Terminologies

 Archived Tutorials


 Full Version in PDF/EPUB