Continuous beam analysis using matrix methods, Java

Write a program that draws the shear force and bending moment and deflection diagrams for a continuous beam under vertical loads. Must use stiffness matrix method or similar. The user can input parameters such as: - Length of Beam - Add Loads, both points and uniformly distributed - location of those loads - Magnitude of those loads - allows more than 1 load to be added - Values of E and I The output of the programs is: - The shear force and bending moment diagrams - The deflection of the beam - values of key points on diagrams Program must be well organised and easy to use with good comments --------------------------------------------------------------- Attached is a program i found on the internet and is the sort of thing im looking for.