When using Java’s Map implementations, it is sometimes common to invoke the Map ‘s get (Object) method and to react differently based on whether the value returned is null or not. A common ...

The free Java applet MAPresso generates choropleth maps, informational maps that represent statistical variations with shaded colors. You've seen them used to display voting statistics, […] ...

A colleague of mine recently ran into an issue that I have not run into myself, but found to be interesting and, in my opinion, worth blogging about here. During some distributed Java development ...

Learn how Rob Terpilowski and his architect team brought Google Maps to the Java desktop.

HashMap vs. Hashtable similarities Both the Hashtable and HashMap implement the Map interface and both share the same set of methods used to add, remove and manipulate elements of a key-value, ...