Category "file-writing"

Simple java questionnaire using json

I made a simple questionnaire. I need to write the responses to a JSON file. How to do it? I use IDEA Intellij and library GSON for work with JSON. This is main

What file extensions can be created/written with Java's Writer write() method?

I have a question about Java streams but I can't seem to find the answer in the documentation: What file formats or extensions can be written with java.io FileW