assigns a data-type to a variable. As you can see in the following var examples, the left-hand side of the assignment does not reference a Java types such as long, double or ArrayList. Instead, it ...

Advanced techniques like bounded types and wildcards support the creation of flexible data structures and algorithms ... parameters and the other is to use the Java Reflection API.

If all of the values fall within the range of a float, it makes sense to use the smaller Java data type in this situation, otherwise the array elements needlessly consume memory.

Listing 3. Excerpts from the meta-file that specifies the Java data types of various elements declared in the keplerian_elements.dtd file.