For new Java programmers, the JOptionPane class is a great visual and user-friendly introduction to user input and Swing-based programming. Here's how to get started.

Use the Scanner’s next () or nextLine() methods to convert user input into the appropriate type. Use the Java user input in your program. Java Scanner import example Found in the java.util package, ...

When you run the program, I have provided logging in the form of print statements. The console will print out all deletions and insertions to the original json object list. The output is written to a ...