Java open text file in notepad

Assume I have a file like this with the. I procede to right click and select the open with option, where notepad and vscode are also present.

What I want is for my application to be here, and I know that I have to edit the registry and add the main executable of my app for every text file associations and I'm pretty confident I can do it with by running the reg command in batch correct me if I'm wrong.

The part where my personal research was not good enough is actually how to physically implement the open with behavior in my java code, meaning I don't have any "entry points". If only I had the path of the selected file I could call my open function with that path and the job would be done.

However, I don't understand what's going on in the background. Note: I am still learning batch and windows related topics so I apologize if this is a stupid question. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. How to implement "open with" in a notepad application Ask Question. As a side note, if you're interested in formatting your text output, note that I use System.

You want to use both a BufferedReader and FileReader like this when reading from a text file in Java. I don't know why a FileReader doesn't handle buffering, but it doesn't, so you add the BufferedReader to make it much faster to read larger files. The BufferedReader also gives you the convenient readLine method. I hope this Java file-open and file-read example has been helpful. If you have any questions, just leave a note in the Comments section.

It should not be used for reading in large files. SecurityException — checkRead method will be invoked to check read access to the file. Enter your name and email address below to subscribe to our newsletter. Add Comment. Post Comment. Table of Contents. Newsletter Updates Enter your name and email address below to subscribe to our newsletter Subscribe.