Adding JDK "bin" Directory to Path Setting

This section provides a tutorial on how to add JDK 'bin' directory to the 'path' system environment variable.

In order to run Java compiler and JVM by typing their program file name without the directory path name, I updated the "path" environment variable on my Windows computer:

Then I ran the "echo %path%" command in a new command window to confirm the change:

hreong> echo %path%


Now I should be able to run Java commands without the directory path name:

herong> java -version
java version "17.0.1" 2021-10-19 LTS

herong> javac

herong> java Hello
Hello world!

Now I am ready to play with Java tools included in Oracle JDK package!

Adding JDK bin Directory to Path Setting
Adding JDK "bin" Directory to Path Setting

You can also set a new environment variable called "java_home" to avoid typing the full path name to access Java tool program files:

herong> set java_home=C:\Progra~1\java\jdk-17.0.1

herong> %java_home%\bin\java -version
java version "17.0.1" 2021-10-19 LTS

Table of Contents

 About This JDK Tutorial Book

JDK (Java Development Kit)

 What Is JDK

 Download and Install JDK on Windows

 Writing My First Java Program

Adding JDK "bin" Directory to Path Setting

 JDK Documentation Installation

 Download and Install JDK on macOS

 Check JDK Version on CentOS

 Install JDK with "rpm" Command

 Install JDK with "yum" Command

 Java Date-Time API

 Date, Time and Calendar Classes

 Date and Time Object and String Conversion

 Number Object and Numeric String Conversion

 Locales, Localization Methods and Resource Bundles

 Calling and Importing Classes Defined in Unnamed Packages

 HashSet, Vector, HashMap and Collection Classes

 Character Set Encoding Classes and Methods

 Character Set Encoding Maps

 Encoding Conversion Programs for Encoded Text Files

 Java Logging

 Socket Network Communication

 Datagram Network Communication

 DOM (Document Object Model) - API for XML Files

 SAX (Simple API for XML)

 DTD (Document Type Definition) - XML Validation

 XSD (XML Schema Definition) - XML Validation

 XSL (Extensible Stylesheet Language)

 Message Digest Algorithm Implementations in JDK

 Private key and Public Key Pair Generation

 PKCS#8/X.509 Private/Public Encoding Standards

 Digital Signature Algorithm and Sample Program

 "keytool" Commands and "keystore" Files

 KeyStore and Certificate Classes

 Secret Key Generation and Management

 Cipher - Encryption and Decryption

 The SSL (Secure Socket Layer) Protocol

 SSL Socket Communication Testing Programs

 SSL Client Authentication

 HTTPS (Hypertext Transfer Protocol Secure)

 Outdated Tutorials


 Full Version in PDF/EPUB