DirSize

where has all my disk space gone? automated tool to generate reports by user etc
ShellSort

ShellSort is a simple sort suitable for 2000 or less elements.
RadixSort

RadixSort is a fast internal sort written in Java that mimics a card sorter.
QuickSort

QuickSort is an implementation of Tony Hoare's classic recursive Quicksort.
HeapSort

HeapSort is an implementation of Williams and Floyd classic HeapSort.
CSV

java to read, write, align, sort, reshape, pack... comma, tab-separated files.
ComparatorCutter

generates custom java code to implemet comparable/comparator interfaces.