JTree node problem

Question

When I choose 1st class file through the FileChooser and display the class details in a JTree by using reflection function, it success. But when I choose the 2nd class file through the FileChooser, the tree node displaying the details of the 1st class and 2nd class are the same......... what's wrong with the code I use to create tree nodes??
private void createNodes(DefaultMutableTreeNode top) {/Class name nodeDefaultMutableTreeNode categoryClass = null;//category nodeDefaultMutableTreeNode categoryStuff = null;//method name nodeDefaultMutableTreeNode stuff = null;for (Iterator iterscn = scn.showClasses_List.iterator(); iterscn.hasNext();) {Clas clas = (Clas) iterscn.next();categoryClass = new DefaultMutableTreeNode(clas.getName());top.add(categoryClass);//---------------------------------------------------------------------------//adding constructors to the treeConstructorsList conList = clas.getConstructorsList();categoryStuff = new DefaultMutableTreeNode(conList.toString());categoryClass.add(categoryStuff);//while not pointing to the element after last element in the list, dofor (Iterator itercl = sc.showConstructors_List.iterator(); itercl.hasNext();) {Construct cons = (Construct) itercl.next();//set the DisplayElement valueDisplayElement ele = new DisplayElement();ele.setName(cons.getName());ele.setDisplay(cons.getDisplay());if (allElementList.addElement(ele)) {};stuff = new DefaultMutableTreeNode(cons.getName());categoryStuff.add(stuff);}//---------------------------------------------------------------------------//adding field to the treeFieldsList fieList = clas.getFieldsList();categoryStuff = new DefaultMutableTreeNode(fieList.toString());categoryClass.add(categoryStuff);//while not pointing to the element after last element in the list, dofor (Iterator iterfl = sf.showFields_List.iterator(); iterfl.hasNext();) {Fiel fie = (Fiel) iterfl.next();//set the DisplayElement valueDisplayElement ele1 = new DisplayElement();ele1.setName(fie.getName());ele1.setDisplay(fie.getDisplay());allElementList.addElement(ele1);stuff = new DefaultMutableTreeNode(fie.getName());categoryStuff.add(stuff);}//----------------------------------------------------------------------------//adding Interface to the treeInterfacesList inteList = clas.getInterfacesList();categoryStuff = new DefaultMutableTreeNode(inteList.toString());categoryClass.add(categoryStuff);//while not pointing to the element after last element in the list, dofor (Iterator iteril = si.showInterfaces_List.iterator(); iteril.hasNext();) {Interf inte = (Interf) iteril.next();//set the DisplayElement valueDisplayElement ele2 = new DisplayElement();ele2.setName(inte.getName());ele2.setDisplay(inte.getDisplay());allElementList.addElement(ele2);stuff = new DefaultMutableTreeNode(inte.getName());categoryStuff.add(stuff);}//-----------------------------------------------------------------------------//adding methods to the treeMethodsList metList = clas.getMethodsList();categoryStuff = new DefaultMutableTreeNode(metList.toString());categoryClass.add(categoryStuff);//while not pointing to the element after last element in the list, dofor (Iterator iterml = sm.showMethods_List.iterator(); iterml.hasNext();) {Meths met = (Meths) iterml.next();//set the DisplayElement valueDisplayElement ele3 = new DisplayElement();ele3.setName(met.getName());ele3.setDisplay(met.getDisplay());allElementList.addElement(ele3);stuff = new DefaultMutableTreeNode(met.getName());categoryStuff.add(stuff);}//-----------------------------------------------------------------

Answer 1

Here is the code
private void createNodes(DefaultMutableTreeNode top) {
//Class name node
DefaultMutableTreeNode categoryClass = null;
//category node
DefaultMutableTreeNode categoryStuff = null;
//method name node
DefaultMutableTreeNode stuff = null;
for (Iterator iterscn = scn.showClasses_List.iterator(); iterscn.hasNext();) {
Clas clas = (Clas) iterscn.next();
categoryClass = new DefaultMutableTreeNode(clas.getName());
top.add(categoryClass);
//adding constructors to the tree
ConstructorsList conList = clas.getConstructorsList();
categoryStuff = new DefaultMutableTreeNode(conList.toString());
categoryClass.add(categoryStuff);
//while not pointing to the element after last element in the list, do
for (Iterator itercl = sc.showConstructors_List.iterator(); itercl.hasNext();) {
Construct cons = (Construct) itercl.next();
//set the DisplayElement value
DisplayElement ele = new DisplayElement();
ele.setName(cons.getName());
ele.setDisplay(cons.getDisplay());
if (allElementList.addElement(ele)) {};
stuff = new DefaultMutableTreeNode(cons.getName());
categoryStuff.add(stuff);
//adding field to the tree
FieldsList fieList = clas.getFieldsList();
categoryStuff = new DefaultMutableTreeNode(fieList.toString());
categoryClass.add(categoryStuff);
//while not pointing to the element after last element in the list, do
for (Iterator iterfl = sf.showFields_List.iterator(); iterfl.hasNext();) {
Fiel fie = (Fiel) iterfl.next();
//set the DisplayElement value
DisplayElement ele1 = new DisplayElement();
ele1.setName(fie.getName());
ele1.setDisplay(fie.getDisplay());
allElementList.addElement(ele1);
stuff = new DefaultMutableTreeNode(fie.getName());
categoryStuff.add(stuff);
//adding Interface to the tree
InterfacesList inteList = clas.getInterfacesList();
categoryStuff = new DefaultMutableTreeNode(inteList.toString());
categoryClass.add(categoryStuff);
//while not pointing to the element after last element in the list, do
for (Iterator iteril = si.showInterfaces_List.iterator(); iteril.hasNext();) {
Interf inte = (Interf) iteril.next();
//set the DisplayElement value
DisplayElement ele2 = new DisplayElement();
ele2.setName(inte.getName());
ele2.setDisplay(inte.getDisplay());
allElementList.addElement(ele2);
stuff = new DefaultMutableTreeNode(inte.getName());
categoryStuff.add(stuff);
//adding methods to the tree
MethodsList metList = clas.getMethodsList();
categoryStuff = new DefaultMutableTreeNode(metList.toString());
categoryClass.add(categoryStuff);
//while not pointing to the element after last element in the list, do
for (Iterator iterml = sm.showMethods_List.iterator(); iterml.hasNext();) {
Meths met = (Meths) iterml.next();
//set the DisplayElement value
DisplayElement ele3 = new DisplayElement();
ele3.setName(met.getName());
ele3.setDisplay(met.getDisplay());
allElementList.addElement(ele3);
stuff = new DefaultMutableTreeNode(met.getName());
categoryStuff.add(stuff);
//------------------------------------------------------------------------------