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DZone
CONTACT US 600 Park Offices Drive Suite 150 Research Triangle Park, NC 27709 support@dzone.com +1 (919) 678-0300
Java Memory Architecture Cheat Sheet
The diagram below is the Java Memory Model for the Heap as well as the PermGen for any Java Application running in the Java Virtual Machine (JVM). The ratios are also provided to get a fair understanding of how the distribution of allowed memory is done across each of the generation types. All of the info is completely applicable up to Java 1.7 (inclusive). This diagram is also known as the 'Manag
MapDB: The Agile Java Data Engine - DZone
MapDB is a pure Java database, specifically designed for the Java developer. The fundamental concept for MapDB is very clever yet natural to use: provide a reliable, full-featured and “tune-able” database engine using the Java Collections API. MapDB 1.0 has just been released, this is the culmination of years of research and development to get the project to this point. Jan Kotek, the primary deve
10 Reasons Web Developers Should Learn AngularJS - DZone
There is no doubt that AngularJS – the self-proclaimed “superheroic JavaScript framework” – is gaining traction. I’ll refer to it frequently as just “Angular” in this post. I’ve had the privilege of working on an enterprise web application with a large team (almost 10 developers, soon growing to over 20) using Angular for over half of a year now. What’s even more interesting is that we started wit
Architexa - a Fine Code Reading Tool - DZone
I love reading code. For two reasons : If the code is bad, it is an awesome ego boost PLUS you get to foul mouth someone who has a good reputation for designing amazing things. If the code is good, then you get to learn some new tricks and some cool patterns yet to be published anywhere I am sure you read a lot of code and I am sure you’ll love this awesome code reading tool which I came across a
Speed Up with Fast Java and File Serialization - DZone
Since the first version of Java, day-by-day many developers have been trying to achieve at least as good of performance as in C/C++. JVM vendors are doing their best by implementing some new JIT algorithms, but there is still a lot to do, especially in how we use Java. For example, there is a lot to win in objects<->file serialization - notably in writing/reading objects that can readily fit in th
Top 10 Customization of Eclipse Settings - DZone
the great thing with eclipse is that you can configure a lot. in general, i’m happy with most of the defaults in eclipse and codewarrior. here are my top 10 things i change in eclipse to make it even better: add -showlocation to the eclipse startup command line: show workspace location in the title bar disable the heuristik settings for the indexer : fixing the eclipse index disable build (if requ
Java Memory Model From a Programmer's Point-of-View - DZone
1 INTRODUCTIONProgrammers at large often feel difficult to learn Java Memory Model (JMM for short) from either Java Language Specification Third Edition (JLSv3 for short)[11] or Java Virtual Machine Specification Second Edition (JVMSv2 for short)[12] due to several reasons. One is he/she lacks basic understanding of out-of-order execution in modern CPUs and compilers. Next is there are so many aca
Reverse-Engineer Source Code into UML Diagrams - DZone
I have been on several teams where we studiously designed UML diagrams at the beginning of the project. As the project progressed, and deadlines approached, the UML diagrams were left somewhere behind, not to be updated in months. When a new developer joined the team, we showcased the old UML diagrams, and kept telling "Oh, we never had time to update them, please see the source code to get an ide
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