I am developing an explorer application. In that I want to add a windows directory structure in JTree
. Can anybody help me to do that?
you simply need to get the whole filesystem listed. For example choose a root directory (in my case I chose C:/test
. With the method listFiles()
you get all the items the root file contains (be sure root is a directory!). Then you iterate over this File-Array and add every item to the model.
In your case you need to check every sub-item whether its a directory or a file. If its a directory you just start again and list all sub-items. Read about recursion
to implement that.
Here is my code:
/**
*
*/
package tests.fileview;
import java.io.File;
import javax.swing.JFrame;
import javax.swing.JTree;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.DefaultTreeModel;
/**
* FileViewTest created on 02.10.2013<br>
* <br>
* Specification:<br>
*/
public class FileViewTest extends JFrame {
public static void main(String[] args) {
new FileViewTest().setVisible(true);
}
private JTree tree;
/**
*
*/
public FileViewTest() {
this.initialize();
this.build();
this.configure();
}
/**
*
*/
public void initialize() {
this.tree = new JTree();
}
/**
*
*/
public void build() {
this.add(this.tree);
}
/**
*
*/
public void configure() {
File fileRoot = new File("C:/test");
DefaultMutableTreeNode root = new DefaultMutableTreeNode(fileRoot);
DefaultTreeModel model = new DefaultTreeModel(root);
File[] subItems = fileRoot.listFiles();
for (File file : subItems) {
root.add(new DefaultMutableTreeNode(file));
}
this.tree.setModel(model);
}
}
I Googled 'How to add windows directory structure in JTree?' and found several complete examples such as ' http://www.java2s.com/Code/Java/File-Input-Output/DisplayafilesysteminaJTreeview.htm ' (Ain't Google awesome?)
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