Application to generate Java class hierarchy diagram [closed]

Answer 1

It seems that Class Visualizer meets all your requirements (except of saving diagram as PNG).

Answer 2

The answer is probably "no such OSS / free application exists". Why? Because:

1. Most people who want an inheritance diagram for a large number of classes are already working in the context of an IDE or similar. Ergo there is little motivation for OSS developers to produce such a tool.
2. Automatically creating visually appealing diagrams of large numbers of classes is next to impossible.

I suggest that you relax your requirements. I mean, what is wrong with using a large scale IDE or UML modeller? Memory is cheap. What is wrong with waiting a few seconds to load / run the diagrammer? Patience grasshopper! What high-school student with 2 days of training is going to be looking at source-code base with 10,000+ classes???

Answer 3

The Netbeans UML plugin will cover some of your requirements.

• Produces a visually appealing graph hierarchy: a matter of taste
• Writes high-quality PNG images (300dpi+): I don't know
• Visually differentiates classes, abstract classes, interfaces, and enumerated types: yes it does as it uses UML
• Interactive user interface: yes
• Allows pruning of packages and/or individual classes from the diagram: yes
• Seeds (e.g., File » Open) using a set of: it work with netbeans projects
  • Directories
  • JAR files
  • Individual source files
  • Individual compiled classes
• Performs a fully automatic analysis: maybe
• Uses a single executable: not applicable, it's a plugin of Netbeans
• Is lightweight and fast: like netbeans
• Is simple, quick, and easy to use: depends of user
• Is OSS or GPL: I think it is OSS, surely it is free as in free drink
• (Optional) Generates a call-graph hierarchy (in addition to a class hierarchy): I don't think it does