protected void clear(JComponent comp) { int nCompCount = comp.getComponentCount(); ArrayList aListComps = new ArrayList(); for (int i = 0; i < comp.getComponentCount(); i++) { Component compChild = comp.getComponent(i); if (compChild instanceof JComponent) { JComponent jcomp = (JComponent) compChild; if (jcomp instanceof JCheckBox || jcomp instanceof JTextField) aListComps.add(comp); else clear(jcomp); } } clear(aListComps); }