Allow only a single node to be selected (default) : JTree Selection « Swing « Java Tutorial

1. Java Tutorial
2. Swing
3. JTree Selection

import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTree;
import javax.swing.tree.TreeSelectionModel;


public class TreeSingleSelection {
  public static void main(String[] argv) {
    JTree tree = new JTree();

    tree.getSelectionModel().setSelectionMode(TreeSelectionModel.SINGLE_TREE_SELECTION);

    JFrame frame = new JFrame("Tree single selection");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.add(new JScrollPane(tree));
    frame.setSize(380, 320);
    frame.setLocationRelativeTo(null);
    frame.setVisible(true);

  }
}

14.71.JTree Selection
	14.71.1.	Enabling and Disabling Multiple Selections in a JTree Component
	14.71.2.	Allow only a single node to be selected (default)
	14.71.3.	Allow selection to span one vertical contiguous set of visible nodes
	14.71.4.	Allow multiple selections of visible nodes
	14.71.5.	Listening for Selection Events in a JTree Component
	14.71.6.	Getting the Selected Nodes in a JTree Component
	14.71.7.	Returns a TreePath containing the specified node.
	14.71.8.	Determine if the third item is selected