JHeatChart is a one class Java API for generating heat map charts that was created because very few charting APIs seem to contain the facility to create heat maps. It is not a full featured charting API and cannot be used to other charts. The generated charts are created as Java Image objects, which can be incorporated into a GUI or saved to a file.
Ingatan is a clean, intuitive, and highly flexible memory quiz generator. It is perfect for a huge range of applications, including learning languages, remembering physics equations, labelling anatomical diagrams, practising any type of exam question, and reviewing organic chemistry mechanisms. When asking questions, a bias is placed toward those with a low historical grade. An inline symbol menu makes it easy to insert non-keyboard characters. Questions are intelligently organised into libraries, and libraries into groups, and can easily be shared.