Runtime - eksekvering af exe fil

Den run metode bliver kørt i event tråden.

Prøv og lav en seperat tråd.

Eksempel:

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.io.*;

public class ShowDir extends JFrame implements ActionListener, Runnable {
    private JButton show;
    private JTextField dir;
    private JTextArea dirlist;

    public ShowDir() {
        getContentPane().setLayout(new BorderLayout());
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setSize(400, 400);
        dir = new JTextField();
        getContentPane().add(dir, BorderLayout.NORTH);
        dirlist = new JTextArea();
        getContentPane().add(new JScrollPane(dirlist), BorderLayout.CENTER);
        show = new JButton("Vis dir indhold");
        show.addActionListener(this);
        getContentPane().add(show, BorderLayout.SOUTH);
    }

    public void actionPerformed(ActionEvent evt) {
        dirlist.setText("");
        Thread t = new Thread(this);
        t.start();
    }

    public void run() {
        Process p;
        try {
            p = Runtime.getRuntime().exec("CMD /C DIR " + dir.getText() + " /S");
            BufferedReader br = new BufferedReader(new InputStreamReader(p.getInputStream()));
            String line;
            while ((line = br.readLine()) != null) {
                dirlist.setText(dirlist.getText() + line + "\r\n");
            }       
        } catch (IOException e) {
        }
    }

    public static void main(String[] args) {
        ShowDir f = new ShowDir();
        f.setVisible(true);
    }
}

OK ?

Jeg har endnu ikke fået det testet