package javax.swing; import java.awt.*; import javax.swing.plaf.*; public class JTree extends JComponent implements Scrollable, Accessible { JTree() { updateUI(); } public TreeUI getUI() { return (TreeUI) ui; } public void setUI(TreeUI ui) { super.setUI(ui); } public void updateUI() { setUI((TreeUI)UIManager.getUI(this)); } public String getUIClassID() { return "JTree"; } public AccessibleContext getAccessibleContext() { return null; } public Dimension getPreferredScrollableViewportSize() { return null; } public int getScrollableUnitIncrement(Rectangle visibleRect, int orientation, int direction) { return 1; } public int getScrollableBlockIncrement(Rectangle visibleRect, int orientation, int direction) { return 1; } public boolean getScrollableTracksViewportWidth() { return false; } public boolean getScrollableTracksViewportHeight() { return false; } }