Java developer who can build a simulation

you’ll be making use of all the new tools and techniques for building a simple simulation of your choice. There are a number of options that you have here:
➢ Robot Simulation
➢ Electrical Power Grid (or other public utility) Simulation ➢ Dyson Sphere Simulation
➢ Traffic Simulation
➢ Planetary Cargo Transport Simulation
➢ Social Media Simulation
➢...