POCU COMP3500 java
https://github.com/Dexter0526/COMP3500/tree/main/src/academy/pocu/ch01
https://github.com/Dexter0526/COMP3500/tree/main/src/academy/pocu/ch02
https://github.com/Dexter0526/COMP3500/tree/main/src/academy/pocu/ch03
https://github.com/Dexter0526/COMP3500/tree/main/src/academy/pocu/ch04
https://github.com/Dexter0526/COMP3500/tree/main/src/academy/pocu/ch05
https://github.com/Dexter0526/COMP3500/tree/main/src/academy/pocu/ch06
https://github.com/Dexter0526/COMP3500/tree/main/src/academy/pocu/ch07
https://github.com/Dexter0526/COMP3500/tree/main/src/academy/pocu/ch08
https://github.com/Dexter0526/COMP3500/tree/main/src/academy/pocu/ch09
https://github.com/Dexter0526/COMP3500/tree/main/src/academy/pocu/ch10
https://github.com/Dexter0526/COMP3500/tree/main/src/academy/pocu/ch11
https://github.com/Dexter0526/COMP3500/tree/main/src/academy/pocu/ch12
https://github.com/Dexter0526/COMP3500/tree/main/src/academy/pocu/ch13