JFileChooser: setFileFilter(FileFilter filter)
import java.io.File;
import javax.swing.JFileChooser;
import javax.swing.filechooser.FileFilter;
public class MainClass {
public static void main(String[] a) {
JFileChooser fileChooser = new JFileChooser(".");
FileFilter filter1 = new ExtensionFileFilter("JPG and JPEG", new String[] { "JPG", "JPEG" });
fileChooser.setFileFilter(filter1);
int status = fileChooser.showOpenDialog(null);
if (status == JFileChooser.APPROVE_OPTION) {
File selectedFile = fileChooser.getSelectedFile();
System.out.println(selectedFile.getParent());
System.out.println(selectedFile.getName());
} else if (status == JFileChooser.CANCEL_OPTION) {
System.out.println(JFileChooser.CANCEL_OPTION);
}
}
}
class ExtensionFileFilter extends FileFilter {
String description;
String extensions[];
public ExtensionFileFilter(String description, String extension) {
this(description, new String[] { extension });
}
public ExtensionFileFilter(String description, String extensions[]) {
if (description == null) {
this.description = extensions[0];
} else {
this.description = description;
}
this.extensions = (String[]) extensions.clone();
toLower(this.extensions);
}
private void toLower(String array[]) {
for (int i = 0, n = array.length; i < n; i++) {
array[i] = array[i].toLowerCase();
}
}
public String getDescription() {
return description;
}
public boolean accept(File file) {
if (file.isDirectory()) {
return true;
} else {
String path = file.getAbsolutePath().toLowerCase();
for (int i = 0, n = extensions.length; i < n; i++) {
String extension = extensions[i];
if ((path.endsWith(extension) && (path.charAt(path.length() - extension.length() - 1)) == '.')) {
return true;
}
}
}
return false;
}
}
Related examples in the same category