How to create a properties file in Java

Let's create a properties file. Create instance of class Properties.

Properties properties = new Properties();

Add properties you want.

properties.setProperty("project-name", "JavaVids"); 

Create a new writer.

FileWriter writer = new FileWriter("conf.properties"); 

Store properties to writer. You can also add a comment.

properties.store(writer, "Jiri Pinkas"); 

Close writer.

writer.close(); 

Add throws declaration to ignore exceptions. This is how you do it quick and dirty. To handle exceptions properly change code to this:

Properties properties = new Properties();
properties.setProperty("project-name", "JavaVids");
FileWriter writer = null;
try {
	writer = new FileWriter("conf.properties");
	properties.store(writer, "Jiri Pinkas");
} catch (IOException ex) {
	ex.printStackTrace();
} finally {
	if (writer != null) {
		try {
			writer.close();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}
}