JFileChooser : JFileChooser « Swing « Java Tutorial

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Java Tutorial » Swing » JFileChooser

14. 77. 1. JFileChooser

A JFileChooser is a dialog to select a file or files.

The return value of the three methods is one of the following:

JFileChooser.CANCEL_OPTION, if the user clicks Cancel.
JFileChooser.APPROVE_OPTION, if the user click an OK/Open/Save button.
JFileChooser.ERROR_OPTION, if the user closes the dialog

A return value of JFileChooser.APPROVE_OPTION, indicates that you can call its getSelectedFile or getSelectedFiles methods:


public java.io.File getSelectedFile ()

public java.io.File[] getSelectedFiles ()

JFileChooser has supporting classes: FileFilter class, FileSystemView class, FileView.

FileFilter class is for restricting files and directories to be listed in the FileView of the JFileChooser. The FileView controls how the directories and files are listed within the JFileChooser. The FileSystemView is an abstract class that tries to hide file system-related operating system specifics from the file chooser.


import javax.swing.JFileChooser;

import javax.swing.JFrame;



public class MainClass extends JFrame {

  public MainClass() {

    JFileChooser fileChooser = new JFileChooser();

    fileChooser.setDialogTitle("Choose a file");

    this.getContentPane().add(fileChooser);

    fileChooser.setVisible(true);

  }



  public static void main(String[] args) {

    JFrame frame = new MainClass();

    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);



    frame.pack();

    frame.setVisible(true);

  }

}

14. 77. JFileChooser
	14. 77. 1.	JFileChooser
	14. 77. 2.	JFileChooser is a standard dialog for selecting a file from the file system.
	14. 77. 3.	Getting and Setting the Selected File of a JFileChooser Dialog
	14. 77. 4.	Getting and Setting the Current Directory of a JFileChooser Dialog
	14. 77. 5.	Determining If the Approve or Cancel Button Was Clicked in a JFileChooser Dialog
	14. 77. 6.	Displaying Only Directories in a File Chooser Dialog
	14. 77. 7.	Creating a JFileChooser Dialog
	14. 77. 8.	Select a directory with a JFileChooser
	14. 77. 9.	Disable the JFileChooser 'New folder' button
	14. 77. 10.	Listening for Approve and Cancel Events in a JFileChooser Dialog
	14. 77. 11.	Using JFileChooser
	14. 77. 12.	Working with File Filters
	14. 77. 13.	To enable the display of hidden files
	14. 77. 14.	The JFileChooser supports three selection modes: files only, directories only, and files and directories
	14. 77. 15.	Adding Accessory Panels
	14. 77. 16.	Custom FileView for Some Java-Related File Types
	14. 77. 17.	Using a JFileChooser in Your JFrame
	14. 77. 18.	ActionListener for JFileChooser in Your JFrame
	14. 77. 19.	JFileChooser Selection Option: JFileChooser.APPROVE_OPTION, JFileChooser.CANCEL_OPTION
	14. 77. 20.	Adding an ActionListener to a JFileChooser to listen for selection of the approval or cancel actions.
	14. 77. 21.	Listening for Changes to the Selected File in a JFileChooser Dialog
	14. 77. 22.	Getting the File-Type Icon of a File
	14. 77. 23.	Getting the Large File-Type Icon of a File
	14. 77. 24.	Localize a JFileChooser
	14. 77. 25.	Determining If a File Is Hidden
	14. 77. 26.	Showing Hidden Files in a JFileChooser Dialog
	14. 77. 27.	Changing the Text of the Approve Button in a JFileChooser Dialog
	14. 77. 28.	Enabling Multiple Selections in a JFileChooser Dialog
	14. 77. 29.	Adding a Filter to a File Chooser Dialog
	14. 77. 30.	A convenience implementation of FileFilter that filters out all files except for those type extensions that it knows about.
	14. 77. 31.	Customizing a JFileChooser Look and Feel
	14. 77. 32.	Get Directory Choice
	14. 77. 33.	Get File Choice

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