Ola galera…to precisando de uma ajuda aki urgente para resolver o problema desse codigo.
Eu marquei uma linha com asterisco,o programa nao esta executando akela linha,ele pula para a linha onde coloquei os arrobas.Nao sei pq isso ta acontecendo…por favor me ajudem.
Obrigado
Tiago
[import java.io.;
import java.awt.;
import java.awt.event.;
import javax.swing.;
import javax.swing.filechooser.*;
/*
-
FileChooserDemo.java is a 1.4 application that uses these files:
-
images/Open16.gif
-
images/Save16.gif
*/
public class FileChooserDemo extends JPanel
implements ActionListener {
static private final String newline = "
";
JButton openButton, saveButton;
JTextArea log;
JFileChooser fc;
BufferedReader inReader = null;
DataInputStream data = null;
private InputStream fis;
public FileChooserDemo() {
super(new BorderLayout());//Create the log first, because the action listeners
//need to refer to it.
log = new JTextArea(5,20);
log.setMargin(new Insets(5,5,5,5));
log.setEditable(false);
JScrollPane logScrollPane = new JScrollPane(log);//Create a file chooser
fc = new JFileChooser();//Uncomment one of the following lines to try a different
//file selection mode. The first allows just directories
//to be selected (and, at least in the Java look and feel,
//shown). The second allows both files and directories
//to be selected. If you leave these lines commented out,
//then the default mode (FILES_ONLY) will be used.
//
//fc.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
//fc.setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES);//Create the open button. We use the image from the JLF
//Graphics Repository (but we extracted it from the jar).
openButton = new JButton(“Open a File…”,
createImageIcon(“images/Open16.gif”));
openButton.addActionListener(this);//Create the save button. We use the image from the JLF
//Graphics Repository (but we extracted it from the jar).
saveButton = new JButton(“Save a File…”,
createImageIcon(“images/Save16.gif”));
saveButton.addActionListener(this);//For layout purposes, put the buttons in a separate panel
JPanel buttonPanel = new JPanel(); //use FlowLayout
buttonPanel.add(openButton);
buttonPanel.add(saveButton);//Add the buttons and the log to this panel.
add(buttonPanel, BorderLayout.PAGE_START);
add(logScrollPane, BorderLayout.CENTER);
}
public void actionPerformed(ActionEvent e) {
int n_rows = 179;// X
int n_cols = 254;// Y
double[][] points = new double[n_rows][n_cols];
//Handle open button action.
if (e.getSource() == openButton) {
int returnVal = fc.showOpenDialog(FileChooserDemo.this);
if (returnVal == JFileChooser.APPROVE_OPTION) {
File file = fc.getSelectedFile();
//This is where a real application would open the file.
try {
FileInputStream fis = new FileInputStream(file.getName());
}
catch (FileNotFoundException ex) {
}
BufferedInputStream bis = new BufferedInputStream(fis);
data = new DataInputStream(bis);
log.append("Opening: " + file.getName() + "." + newline);
for (int y = 0; y < n_cols; y++) { *************
for (int x = 0; x < n_rows; x++)
{
try{
points[x][y] = (double) data.readFloat();
log.append("Input x : " + x + " ;" + " y : " + y + " ->" +
" Value : " + (float)points[x][y]);
}catch(IOException a) { @@@@@@@@@@@@@@@
log.append("Open command ERROR." + newline);
}
}
}
log.setCaretPosition(log.getDocument().getLength());
//Handle save button action.
} else if (e.getSource() == saveButton) {
returnVal = fc.showSaveDialog(FileChooserDemo.this);
if (returnVal == JFileChooser.APPROVE_OPTION) {
File file = fc.getSelectedFile();
//This is where a real application would save the file.
log.append("Saving: " + file.getName() + "." + newline);
} else {
log.append("Save command cancelled by user." + newline);
}
log.setCaretPosition(log.getDocument().getLength());
}
}
}
/** Returns an ImageIcon, or null if the path was invalid. */
protected static ImageIcon createImageIcon(String path) {
java.net.URL imgURL = FileChooserDemo.class.getResource(path);
if (imgURL != null) {
return new ImageIcon(imgURL);
} else {
System.err.println("Couldn't find file: " + path);
return null;
}
}
/**
* Create the GUI and show it. For thread safety,
* this method should be invoked from the
* event-dispatching thread.
*/
private static void createAndShowGUI() {
//Make sure we have nice window decorations.
JFrame.setDefaultLookAndFeelDecorated(true);
JDialog.setDefaultLookAndFeelDecorated(true);
//Create and set up the window.
JFrame frame = new JFrame("SÜDWESTRUNDFUNK");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
//Create and set up the content pane.
JComponent newContentPane = new FileChooserDemo();
newContentPane.setOpaque(true); //content panes must be opaque
frame.setContentPane(newContentPane);
//Display the window.
frame.pack();
frame.setVisible(true);
}
public static void main(String[] args) {
//Schedule a job for the event-dispatching thread:
//creating and showing this application's GUI.
javax.swing.SwingUtilities.invokeLater(new Runnable() {
public void run() {
createAndShowGUI();
}
});
}
}
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