How can i retrieve a computer name with a java code

Question

hello friends,
please, can i get help on how i can rtrieve the name of a computer(any at all) using java - a code will be appreciated.
i also wish to ask if you know how i can use the JFileChooser class, such that when i click on a file to select it and then click on the open button, the file will open / show in a TextArea which i have already created.
Moreso, how can i use the JFileChooser to save something i've written in a TextArea, as file to a system.
thanks in advance for your useful advice. quite grateful.

Answer 1

'result' is a String I think.
As for your JFileChooser question...
Create your take the file returned from JFileChooser, open it in a BufferedReader (I'm assuming it's text as you want to display it in a JTextArea) then read the lines out.
JFileChooser fc = new JFileChooser();
fc.showOpenDialog(null);
File file = fc.getSelectedFile();
if (file != null) {
try {
BufferedReader in = new BufferedReader(new FileReader(file));
String inputLine;
String total = "";
while ((inputLine = in.readLine()) != null)
total+=inputLine;
in.close();
textarea.setText(total); // textarea = your JTextArea
} catch (Exception e) {
System.err.println("Error: "+e);
}