Java “file write” (or “file save”) methods

Java write/save FAQ: Can you share an example of how to write to a file in Java?

Sure. Here are two "Java file save" or "Java file write" examples, taken from my Java file utilities article (Java file utilities to write, save, open, read, and copy files). I'm not going to explain these too much, but if you need a simple method to write to a file in your Java programs, I hope these methods will help you.

Java file open, read, and write utilities alvin February 1, 2010 - 8:13am

Java file utilities FAQ: Do you have any Java file utilities you can share?

As I was working on another Java/Swing application this weekend, I ran across my "Java file utilities" class, and I thought I'd share that class here today. It's nothing too major, but it does include Java methods that let you open, read, write, and copy files using Java.

A Java socket client class (example source code)

Summary: This article shares the source code for a simple Java Socket client class. This article demonstrates both (a) how to write to a Java socket, and (b) how to read from a Java socket.

A Java class that writes to and reads from a remote socket

I'm not going to describe this much today, but here's the source code for a Java class I put together from a number of other sources on the internet. In short, this code uses a Java Socket to connect to a port on a remote server, sends a command to that server to be executed, and then reads the output from the command that is executed. As a result, I assume that all information sent is text (nothing binary).

How to append text to a file with the Java FileWriter class

Java file writing FAQ: How do I append text to the end of a text file in Java?

The short answer is that you should create a FileWriter instance with the append flag set to true, like this:

BufferedWriter bw = new BufferedWriter(new FileWriter("checkbook.dat", true));

The rest of this article explains this.