java - Get all TreeItems in an SWT Tree -

i want array of treeitems swt tree. however, method included in tree class, getitems() returns items on first level of tree (i.e. aren't children of anything).

can suggest way of children/items?

the documentation of tree#getitems() specific:

returns (possibly empty) array of items contained in receiver that direct item children of receiver. these roots of tree.

here sample code trick:

public static void main(string[] args) {     display display = new display();     final shell shell = new shell(display);     shell.settext("stackoverflow");     shell.setlayout(new filllayout());      final tree tree = new tree(shell, swt.multi);      treeitem parentone = new treeitem(tree, swt.none);     parentone.settext("parent 1");     treeitem parenttwo = new treeitem(tree, swt.none);     parenttwo.settext("parent 2");      (int = 0; < 10; i++)     {         treeitem item = new treeitem(parentone, swt.none);         item.settext(parentone.gettext() + " child " + i);          item = new treeitem(parenttwo, swt.none);         item.settext(parenttwo.gettext() + " child " + i);     }      parentone.setexpanded(true);     parenttwo.setexpanded(true);      list<treeitem> allitems = new arraylist<treeitem>();      getallitems(tree, allitems);      system.out.println(allitems);      shell.pack();     shell.open();     while (!shell.isdisposed())     {         if (!display.readanddispatch())             display.sleep();     }     display.dispose(); }  private static void getallitems(tree tree, list<treeitem> allitems) {     for(treeitem item : tree.getitems())     {         getallitems(item, allitems);     } }  private static void getallitems(treeitem currentitem, list<treeitem> allitems) {     treeitem[] children = currentitem.getitems();      for(int = 0; < children.length; i++)     {         allitems.add(children[i]);          getallitems(children[i], allitems);     } }