JavaWiz - An Educational Visual / Graphical Debugger for Java
JavaWiz helps programming beginners understand what their Java programs are doing. Step through code line by line and watch control flow, variables, memory, arrays, data structures, method calls, streams, and input evolve in synchronized visualization panels.
Unlike a traditional debugger, JavaWiz records the execution trace. You can move backward and forward through a program without restarting it, making abstract runtime behavior concrete and easier to explain, explore, and revisit.