Open and read a file using SWING components.

[Arkie]

Code

GeSHi (java):
/*--------------------------------------------------------------------------
OpenFileDemo class
 *****************
By: deAppel 	http://www.engineeringserver.com
Contact:		info [@] engineeringserver.com
Version:		20/07/2008
"*****************
Note: a class that opens and reads a text file.
//----------------------------------------------------------------------*/
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.File;
import java.io.FileNotFoundException;
import java.util.Scanner;
 
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
 
public class OpenFileDemo extends JFrame implements ActionListener{
	JMenuBar mb = new JMenuBar();
	JMenu menu = new JMenu("File");
	JMenuItem openFile = new JMenuItem("Open file");
	JFileChooser chooseFile = new JFileChooser();
	JTextArea txtArea = new JTextArea();
	JScrollPane scrollPane = new JScrollPane(txtArea);
 
	public OpenFileDemo(){
		//----------------------------------------------------------------------*/
		// Build the menu
		//----------------------------------------------------------------------*/
		mb.add(menu);
		menu.add(openFile);
		openFile.addActionListener(this);
		setJMenuBar(mb);
		//----------------------------------------------------------------------*/
		// Create the txtArea
		//----------------------------------------------------------------------*/
		txtArea.setEditable(false);
		scrollPane.setBounds(0,0,700,500);
		add(scrollPane);
		//----------------------------------------------------------------------*/
		// Gui settings
		//----------------------------------------------------------------------*/
		setLayout(null);
		setTitle("OpenFileDemo - www.engineeringserver.com");
		setSize(800,600);
		setResizable(false);
		setVisible(true);
		setLocationRelativeTo(null);
		setDefaultCloseOperation(EXIT_ON_CLOSE);
	}
 
	public static void main(String[] args){
		new OpenFileDemo();
	}
 
	public void actionPerformed(ActionEvent e) {	
		int selected = chooseFile.showOpenDialog(this);
 
		if (selected == JFileChooser.APPROVE_OPTION){
			File file = chooseFile.getSelectedFile();
			try {
				Scanner sc = new Scanner(file);
				while(sc.hasNextLine()){
					String readTheFile = sc.nextLine();
					txtArea.append(readTheFile);
					txtArea.append("\n");
				}				
			} catch (FileNotFoundException FNFE) {
				FNFE.printStackTrace();
			}
		}			
	}
}
 
Created by GeSHI 1.0.7.20