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The Java conceptual diagram categorizes Java component technologies in levels. The following lists these levels, from top to bottom, and the technologies that are part of each one. Technologies that are part of a lower level serve as a foundation for those that are part of a higher level.

• Java Language
• Tools & Tool APIs
  • java
  • javac
  • javadoc
  • jar
  • javap
  • JPDA
  • JConsole
  • Java VisualVM
  • Java Mission Control
  • Java Flight Recorder
  • Java DB
  • Int'l
  • JVM TI
  • IDL
  • Deploy
  • Security
  • Troubleshoot
  • Scripting
  • Web Services
  • RMI
• Deployment
  • Java Web Start
  • Applet / Java Plug-in
• User Interface Toolkits
  • JavaFX
  • AWT
  • Swing
  • Java 2D
  • Accessibility
  • Drag and Drop
  • Input Methods
  • Image I/O
  • Print Service
  • Sound
• Integration Libraries
  • IDL
  • JDBC
  • JNDI
  • RMI
  • RMI-IIOP
  • Scripting
• Other Base Libraries
  • Beans
  • Int'l Support
  • Input/Output
  • JMX
  • JNI
  • Math
  • Networking
  • Override Mechanism
  • Security
  • Serialization
  • Extension Mechanism
  • XML JAXP
• lang and util Base Libraries
  • lang and util
  • Collections
  • Concurrency Utilities
  • JAR
  • Logging
  • Management
  • Preferences API
  • Ref Objects
  • Reflection
  • Regular Expressions
  • Versioning
  • Zip
  • Instrumentation
• Java Virtual Machine
  • Java HotSpot VM

The JDK consists of all levels.

The JRE consists of the following levels:

• Deployment
• User Interface Toolkits
• Integration Libraries
• Other Base Libraries
• lang and util Base Libraries
• Java Virtual Machine

The Java SE API consists of the following levels:

• User Interface Toolkits except JavaFX
• Integration Libraries
• Other Base Libraries
• lang and util Base Libraries