Removing a Node to a JTree Component : Tree « Swing JFC « Java

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Java » Swing JFC » Tree

Screenshots

Removing a Node to a JTree Component


  

import java.util.Vector;



import javax.swing.JFrame;

import javax.swing.JScrollPane;

import javax.swing.JTree;

import javax.swing.text.Position;

import javax.swing.tree.DefaultTreeModel;

import javax.swing.tree.MutableTreeNode;

import javax.swing.tree.TreePath;



public class TreeNodeRemove{

  public static void main(String[] argv) {

    Vector<String> v = new Vector<String>();

    v.add("a");

    v.add("b");

    v.add("c");

    JTree tree = new JTree(v);

    DefaultTreeModel model = (DefaultTreeModel) tree.getModel();



    int startRow = 0;

    String prefix = "b";

    TreePath path = tree.getNextMatch(prefix, startRow, Position.Bias.Forward);

    MutableTreeNode node = (MutableTreeNode) path.getLastPathComponent();



    model.removeNodeFromParent(node);



    JFrame frame = new JFrame();

    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    frame.add(new JScrollPane(tree));

    frame.setSize(380, 320);

    frame.setLocationRelativeTo(null);

    frame.setVisible(true);

  }

}

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40.	Enabling and Disabling Multiple Selections in a JTree Component
41.	Allow only a single node to be selected (default)
42.	Allow selection to span one vertical contiguous set of visible nodes
43.	Allow multiple selections of visible nodes
44.	Setting the Row Height of a JTree
45.	All rows will be given 15 pixels of height
46.	Have the row height for each row computed individually
47.	Flush the internal cache of Row height
48.	Preventing Expansion or Collapse of a Node in a JTree: override JTree.setExpandedState()
49.	JTree root cannot be removed with removeNodeFromParent(), use DefaultTreeModel.setRoot() to remove the root
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52.	Creating a JTree Component
53.	Changing and Removing the Default Icons in a JTree Component
54.	Use UIManager to change the default icon for JTree
55.	Getting the Selected Nodes in a JTree Component
56.	Visiting All the Nodes in a JTree Component
57.	Traverse all expanded nodes in tree
58.	Finding a Node in a JTree Component
59.	Search backward from last visible row looking for any visible node whose name starts with prefix.
60.	Find the path regardless of visibility that matches the specified sequence of names
61.	Adding a Node to a JTree Component
62.	Returns a TreePath containing the specified node.
63.	Converting All Nodes in a JTree Component to a TreePath Array
64.	Get path for all expanded or not expanded tree pathes
65.	Expanding or Collapsing All Nodes in a JTree Component
66.	Preventing the Expansion or Collapse of a Node in a JTree Component
67.	Listening for Selection Events in a JTree Component
68.	Have a popup attached to a JTree
69.	Deleting nodes from JTree
70.	Adding editable nodes to JTree
71.	Searching node in a JTree
72.	Drag and drop of a group of files into a tree
73.	JTree drag and drop utilites
74.	Expand All for a tree path
75.	Get tree path from TreeNode

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