Prerequisites to the fourteenth lecture is reading chapter 7 of “Art and Science of Java”. The lecture explains memory and how variables are stored.
Prerequisites to the fifteenth lecture is reading chapter 12.4 of “Art and Science of Java”. The lecture continues with variables, heaps and stacks and then explains how files and exceptions work.
The sixteenth lecture explains arrays, how to initialize, work with and pass them.
Prerequisites to the seventeenth lecture is reading chapters 11.1 through 11.5 of “Art and Science of Java”. The lecture continues with arrays and array lists.
Prerequisites to the eighteenth lecture is reading chapters 11.6 through 11.8 of “Art and Science of Java”. The lecture continues with arrays and introduces testing and debugging.
Code for these lectures are available on github.