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The excellent Java tutorials are now available in ebook format. Oracle Blogs: Java Tutorial ebooks

JDK6 and 7 are updated again. Lots of security fixes and general bug fixes. Java SE 7 Update 3 & Java SE 6 Update 31 Released 14/Feb/2012 It seems that we really should start using Java 7 to compile and test code. The big question is, does your code base compile with Java 7? That might seem like a silly question, but I found lots of code at work that does not compile.

Here is an excellent article about Java memory usage From Java code to Java heap: Understanding and optimizing your application's memory usage ibm developerworks article

An excellent video about Function Programming. Neal Ford emphasizes the fact that functional programming uses a different way of solving a problem, thinking about the results rather than the steps to make. infoq: Function Thinking video Related links: Java theory and practice: To mutate or not to mutate? Functional thinking: Thinking functionally, Part 1

The excellent Java IDE NetBeans 7.1 has been released. Lots of exciting new features & improvements like: new visual debugger for Java  JavaFX 2.0 support Java GUI designer improvments Improved Javadoc highlighting & formatting Support for CSS3 Lots of JavaEE improvements Better PHP support Integrated Git support  and lots more.... netbeans.org Release Notes Video screencast Oracle Blogs: NetBeans 7.1 NetBeans 7.1 geared for building better user interfaces eWeek: Oracle delivers NetBeans 7.1

Azul's Pauseless Garbage Collector Goes Native on Linux Eclipse 3.6 vs IntelliJ IDEA 10.5: Pros and Cons Top 10 Reasons Java Programs Envy Scala DataCentreManager Java application 10 years of Eclipse Java Concurrent Animated Android 4.0 development tutorial

The Developer Insight Series, Part 6: Perspectives on Garbage Collection