A single-selection tree : Tree « SWT « Java Tutorial

1. Java Tutorial
2. SWT
3. Tree

import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Tree;
import org.eclipse.swt.widgets.TreeItem;

public class TreeSingleSelection {
  public static void main(String[] args) {
    Display display = new Display();
    Shell shell = new Shell(display);
    shell.setText("TreeExample");

    Tree tree = new Tree(shell, SWT.SINGLE | SWT.BORDER);

    // Turn off drawing to avoid flicker
    tree.setRedraw(false);

    for (int i = 0; i < 5; i++) {
      TreeItem item = new TreeItem(tree, SWT.NONE);
      item.setText("Root Item " + i);

      for (int j = 0; j < 3; j++) {
        TreeItem child = new TreeItem(item, SWT.NONE);
        child.setText("Child Item " + i + " - " + j);

        for (int k = 0; k < 3; k++) {
          TreeItem grandChild = new TreeItem(child, SWT.NONE);
          grandChild.setText("Grandchild Item " + i + " - " + j + " - " + k);
        }
      }
    }
    tree.setRedraw(true);
      
    tree.setBounds(10,10,400,400);
    shell.open();
    while (!shell.isDisposed()) {
      if (!display.readAndDispatch()) {
        display.sleep();
      }
    }
    display.dispose();
  }
}

17.57.Tree
	17.57.1.	Trees
	17.57.2.	Create a Tree
	17.57.3.	Populate tree lazily
	17.57.4.	Create Three Level Tree
	17.57.5.	Insert TreeItem to Tree
	17.57.6.	Add checkbox mark to the tree node
	17.57.7.	A multiselection tree
	17.57.8.	A single-selection tree