It seems there are different ways to read and write data of files in Java. I want to read ASCII data from a file. What are the possible ways and their differences?

java's built in JSON libraries are the quickets way to do so, but in my experience GSON is the best library for parsing a JSON into a POJO painlessly.

How can I read all the files in a folder through Java? It doesn't matter which API.

When passing a -D parameter in Java, what is the proper way of writing the command-line and then accessing it from code? For example, I have tried writing something like this...

Read File as java.io.File Alternatively, if you need an instance of java.io.File, you can employ the getResource() method to retrieve the resource as a URL, and create a File from the resource's …

Mar 16, 2013 · System.in.read() reads from the standard input. The standard input can be used to get input from user in a console environment but, as such user interface has no editing …

Jun 7, 2012 · 85 You can use jackson library and simply use these 3 lines to convert your json file to Java Object.

May 22, 2019 · I need to read a large text file of around 5-6 GB line by line using Java. How can I do this quickly?

The language it produces is still bytecode (not anything like Java), but it's fairly readable and extremely instructive. Also, if you really want to, you can open up any .class file in a hex editor …

Aug 16, 2011 · Possible Duplicate: Best way to read a text file In Java I can open a text file like this: BufferedReader reader = new BufferedReader(new FileReader("file.txt")); My question is, …