Trail: Deployment
Lesson: Packaging Programs in JAR Files
Packaging Programs in JAR Files
Using JAR Files: The Basics
Creating a JAR File
Viewing the Contents of a JAR File
Extracting the Contents of a JAR File
Updating a JAR File
Running JAR-Packaged Software
Working with Manifest Files: The Basics
Understanding the Default Manifest
Modifying a Manifest File
Setting an Application's Entry Point
Adding Classes to the JAR File's Classpath
Setting Package Version Information
Sealing Packages within a JAR File
Signing and Verifying JAR Files
Understanding Signing and Verification
Signing JAR Files
Verifying Signed JAR Files
Using JAR-related APIs
The JarClassLoader Class
The JarRunner Class
Questions and Exercises
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Questions and Exercises: JAR

Questions

  1. How do you invoke an applet that is packaged as a JAR file?

  2. What is the purpose of the -e option in a jar command?

  3. What is the significance of the manifest in a JAR file?

  4. How do you modify a JAR's manifest file?

    5. Check your answers.

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