import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.util.Vector;
import javax.swing.JList;
import javax.swing.JOptionPane;
import javax.swing.JScrollPane;
public class Main {
public static void main(String[] args) throws Exception {
File archivo = new File("c:/Java_Dev/run.bat");
FileReader fr = new FileReader(archivo);
BufferedReader br = new BufferedReader(fr);
Vector<String> lines = new Vector<String>();
String line;
while ((line = br.readLine()) != null) {
lines.add(line);
}
JOptionPane.showMessageDialog(null, new JScrollPane(new JList(lines)));
fr.close();
}
}