How can I use a Java program to update an existing file?

Question

I want to use a Java code that update and change different parts in a list which is stored in a file. How can it be done?

Answer 1

There are a lot of tutorials on the web:

https://www.programiz.com/java-programming/examples/append-text-existing-file

https://javacodepoint.com/how-to-write-data-to-an-existing-excel-file-in-java/