How to “Open” and “Save” using java

by

You want to use a JFileChooser object. It will open and be modal, and block in the thread that opened it until you choose a file.

Open:

JFileChooser fileChooser = new JFileChooser();
if (fileChooser.showOpenDialog(modalToComponent) == JFileChooser.APPROVE_OPTION) {
  File file = fileChooser.getSelectedFile();
  // load from file
}

Save:

JFileChooser fileChooser = new JFileChooser();
if (fileChooser.showSaveDialog(modalToComponent) == JFileChooser.APPROVE_OPTION) {
  File file = fileChooser.getSelectedFile();
  // save to file
}

There are more options you can set to set the file name extension filter, or the current directory. See the API for the javax.swing.JFileChooser for details. There is also a page for “How to Use File Choosers” on Oracle’s site:

http://download.oracle.com/javase/tutorial/uiswing/components/filechooser.html

More Related Contents:

  1. Bringing JFileChooser on top of all windows
  2. Using a JFileChooser with Swing GUI classes and listeners
  3. Browse for image file and display it using Java Swing
  4. How do I restrict JFileChooser to a directory?
  5. JFileChooser filters
  6. How do I set a suggested file name using JFileChooser.showSaveDialog(…)?
  7. UIManager color at a JFileChooser
  8. pulling text from file with Java [closed]
  9. Socket using in a swing applet
  10. How to add JRadioButton to group in JTable
  11. get width and height of JPanel outside of the class
  12. Only one component shows up in JFrame
  13. Individual and not continuous JTable’s cell selection
  14. Difference between validate(), revalidate() and invalidate() in Swing GUI
  15. java – How would I dynamically add swing component to gui on click?
  16. JMenuItem ImageIcon too big
  17. How to calculate the number of rows (and columns in each row) a text takes in a JTextArea?
  18. Stretch a JLabel text
  19. How to implement in Java ( JTextField class ) to allow entering only digits?
  20. Should we use EventQueue.invokeLater for any GUI update in a Java desktop application?
  21. CubicCurve2D connecting two JInternalFrame instances
  22. JComboBox setting label and value
  23. How to capture trayicon.displayMessage() mouse click on the tooltip baloon
  24. Java: mouseDragged and moving around in a graphical interface
  25. How can I change the width of a JComboBox dropdown list?
  26. How to add text different color on JTextPane
  27. How to restrict the JTextField to a x number of characters
  28. how to embed SWT browser in swing jframe
  29. MouseListener Help Java
  30. I need to launch a JFrame from another JFrame and have that run like independent applications, help?

Leave a Comment