JPerf is a perfect hash function generator for Java. The principle of perfect hashing is to reduce the average constant overhead of a hash table by precomputing a hash function which is optimal for the key set. Other advantages include a reduction in memory usage. Finding such a hash function is hard, especially in the general case. These run-time savings come at a cost of increased map creation time. JPerf can create a perfect hash function for a given set of keys and values.
KBasic is a programming language related to VB.NET, Visual Basic, Visual Basic for Applications, and Java. It combines the best features of those tools and comes with built-in backward-compatibility support for VB, VBA, and QBasic. It also comes with support for VB.NET syntax, functions, and similar objects and classes. It allows developers with an installed base of VB applications to start developing for a mixed-platform environment. KBasic comprises a compiler, an interpreter, and an integrated development environment.