Java

• API Specification, Standard Edition 7

• The Java Language Specification, 7 Edition

• The Java Tutorials

Eclipse

• Eclipse tutorial video.

• Eclipse debug tutorial video.

• More Eclipse video tutorials here.

• Extensions (plugins) to Eclipse here.

• Shortcuts of the Eclipse SDK here.

Diverse

• Design Patterns

• Catalog of Refactorings

• Best practices: Collected Java Practices!