Java Tools Tutorials - Herong's Tutorial Notes - Version 5.30, by Dr. Herong Yang

'java' - The Java Program Launcher

This chapter describes the Java launch tool 'java'. Topics include listing of 'java' options, specifying class path with '-classpath', specifying an executable JAR file with '-jar', specifying non-standard options with '-X', launching Java programs without the console window.

'java' - Java Launching Command and Options

Launching - My First Java Program

Option "-classpath" - Specifying Class Path

Option '-jar' - Specifying Executable JAR Files

Option '-X' - Specifying Non-Standard Options

'javaw' - Launching Java Programs without Console


  • "java" is the standard application launcher in JDK.
  • "-sourcepath" specifies places where to search for class definitions of new types.
  • "-jar" specifies a JAR file and launches the class specified in the manifest file.
  • "javaw" is identical to "java" except that it will not create the console window.

Table of Contents

 About This Book

 Java Tools Terminology

 Installing Java 8 on Windows

 'javac' - The Java Program Compiler

'java' - The Java Program Launcher

 'jdb' - The Java Debugger

 'jconsole' - Java Monitoring and Management Console

 'jstat' - JVM Statistics Monitoring Tool

 JVM Troubleshooting Tools

 jvisualvm (Java VisualVM) - JVM Visual Tool

 'jar' - The JAR File Tool

 'javap' - The Java Class File Disassembler

 'keytool' - Public Key Certificate Tool

 'native2ascii' - Native-to-ASCII Encoding Converter

 Outdated Tutorials


 PDF Printing Version

'java' - The Java Program Launcher - Updated in 2014, by Dr. Herong Yang