There are basically three methods or mechanisms in java which can be used to select files or folders. These are as follow:
1) JFileChooser :
2) FolderChooser :
In addition to supporting the basic folder choosing function, it also supports create new folder, delete an existing folder. Another useful feature is recent list. It allows you to set a list of recent selected folders so that user can choose them directly instead of navigating to it in the file system tree.
Following is the hierarchy of FolderChooser class.
Example :
Following is the hierarchy of JDirectoryChooser class.
Example :
final JFrame frame = new JFrame();
JDirectoryChooser chooser = new JDirectoryChooser("C:\\Users\\sshankar\\Desktop\\shiv");
int choice = chooser.showOpenDialog(frame);
if(returnVal == FolderChooser.APPROVE_OPTION) {
System.out.println("You chose to open this file: " +
chooser.getSelectedFile().getName());
}
Key Differences :
1) FolderChooser is slower than both JFileChooser and JDirectoryChooser.
2) JDirectoryChooser provides the additional facility to delete the folder.
3) Appearance of JFileChooser dialog box is different from both JDirectoryChooser and FolderChooser while JDirectoryChooser and FolderChooser dialog boxes almost looks same.
1) JFileChooser :
JFileChooser provides a simple mechanism for the user to
choose a file or folder. Here is the hierarchy of JFileChoose class.java.lang.Objectjava.awt.Component
Example :
final JFrame frame = new JFrame();
JFileChooser chooser = new JFileChooser();
//If you want any folder or files to be selected by default use this
//JFileChooser chooser = new JFileChooser("C:\\Users\\sshankar\\Desktop\\ftp");
//To select only folders use this
//chooser.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
//Code to select files of a particular extensions
ExampleFileFilter filter = new ExampleFileFilter();
filter.addExtension("jpg");
filter.addExtension("gif");
filter.setDescription("JPG & GIF Images");
chooser.setFileFilter(filter);
JTextField jTextField1 = new javax.swing.JTextField();
int choice = chooser.showOpenDialog(frame);
int returnVal = chooser.showOpenDialog(parent);
if(returnVal == JFileChooser.APPROVE_OPTION) {
System.out.println("You chose to open this file: " +
chooser.getSelectedFile().getName());
}
Note : To use ExampleFileFilter class you need to need to include
ExampleFileFilter.java file.You can download it from here
2) FolderChooser :
FolderChooser provides a simple mechanism for the user to choose a folder.In addition to supporting the basic folder choosing function, it also supports create new folder, delete an existing folder. Another useful feature is recent list. It allows you to set a list of recent selected folders so that user can choose them directly instead of navigating to it in the file system tree.
Following is the hierarchy of FolderChooser class.
java.lang.Objectjava.awt.Component
Example :
final JFrame frame = new JFrame();
FolderChooser chooser = new FolderChooser("C:\\Users\\sshankar\\Desktop\\shiv");
int returnVal = chooser.showOpenDialog(frame);
if(returnVal == FolderChooser.APPROVE_OPTION) {
System.out.println("You chose to open this file: " +
if(returnVal == FolderChooser.APPROVE_OPTION) {
System.out.println("You chose to open this file: " +
chooser.getSelectedFile().getName());
}
}
3) JDirectoryChooser :
JDirectoryChooser also provides the mechanism for the user to choose a folder.
A fix to JFileChooser that correctly allows only directories to be selected. Does the trick
by accepting "." as selection of the currently displayed directory.
java.lang.Object
Example :
final JFrame frame = new JFrame();
JDirectoryChooser chooser = new JDirectoryChooser("C:\\Users\\sshankar\\Desktop\\shiv");
int choice = chooser.showOpenDialog(frame);
if(returnVal == FolderChooser.APPROVE_OPTION) {
System.out.println("You chose to open this file: " +
chooser.getSelectedFile().getName());
}
Key Differences :
1) FolderChooser is slower than both JFileChooser and JDirectoryChooser.
2) JDirectoryChooser provides the additional facility to delete the folder.
3) Appearance of JFileChooser dialog box is different from both JDirectoryChooser and FolderChooser while JDirectoryChooser and FolderChooser dialog boxes almost looks same.
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