ช่วยทำหน้าMainให้หน่อยได้ไหมครับคือผมไม่ค่อยเข้าใจเท่าไร

public class cartoonShop {
public class TreeSearch extends JFrame {

private static final long serialVersionUID = 1L;
private DefaultTreeModel model;
private DefaultMutableTreeNode root;
private JTree tree;
private static final int DEFAULT_WIDTH = 800;
private static final int DEFAULT_HEIGHT = 500;
Container contentPane = getContentPane();
JTextField textSearch;

public TreeSearch(){
setTitle("HomeCatoon");
setSize(DEFAULT_WIDTH,DEFAULT_HEIGHT);
root=makeSampleTree();
model = new DefaultTreeModel(root);
tree = new JTree(model);
JScrollPane scrollPane = new JScrollPane(tree);
add(scrollPane,BorderLayout.CENTER); //ฟังก์ชั้นในการเพิ่มข้อมูล
tree.setEditable(true); //ฟังก์ชั่นในการแก้ไขชื่อของข้อมูล
makeButtons();
}

public DefaultMutableTreeNode makeSampleTree(){
DefaultMutableTreeNode root = new DefaultMutableTreeNode("คลังเก็บข้อมูล");
DefaultMutableTreeNode style = new DefaultMutableTreeNode("Book");
root.add(style);
DefaultMutableTreeNode type = new DefaultMutableTreeNode("Cartoon");
style.add(type);
DefaultMutableTreeNode title = new DefaultMutableTreeNode("DORAEMON");
type.add(title);
title = new DefaultMutableTreeNode("Reborn");
type.add(title);
type = new DefaultMutableTreeNode("บากิ");
style.add(type);
title = new DefaultMutableTreeNode("Shaman King");
type.add(title);
type = new DefaultMutableTreeNode("Bleach");
style.add(type);
title = new DefaultMutableTreeNode("Hunter x Hunter");
type.add(title);
title = new DefaultMutableTreeNode("ก้าวแรกสู่สังเวียน");
type.add(title);
title = new DefaultMutableTreeNode("Air Gear");
type.add(title);
type = new DefaultMutableTreeNode("One Piece");
style.add(type);
title = new DefaultMutableTreeNode("Fairy Tail");
type.add(title);
title = new DefaultMutableTreeNode("Fullmetal Alchemist");
type.add(title);
type = new DefaultMutableTreeNode("Negima");
style.add(type);
title = new DefaultMutableTreeNode("The Prince of Tennis");
type.add(title);
title = new DefaultMutableTreeNode("Naruto");
type.add(title);
title = new DefaultMutableTreeNode("D.Gray-Man");
type.add(title);
title = new DefaultMutableTreeNode("Digimon");
type.add(title);
type = new DefaultMutableTreeNode("Worst");
style.add(type);
title = new DefaultMutableTreeNode("Ayakashi Hisen");
type.add(title);
title = new DefaultMutableTreeNode("เทวภูตทมิน");
type.add(title);
title = new DefaultMutableTreeNode("Bakuman");
type.add(title);
title = new DefaultMutableTreeNode("Black Cat");
type.add(title);
title = new DefaultMutableTreeNode("Claymore");
type.add(title);
title = new DefaultMutableTreeNode("GTO");
type.add(title);
type = new DefaultMutableTreeNode("CODE BREAKER");
style.add(type);
title = new DefaultMutableTreeNode("DRAGON BALL AF");
type.add(title);
title = new DefaultMutableTreeNode("DRAGON BALL Z");
type.add(title);
type = new DefaultMutableTreeNode("DRAGON BALL GT");
style.add(type);
title = new DefaultMutableTreeNode("DRAGON BALL ");
type.add(title);
title = new DefaultMutableTreeNode("GANTZ ");
type.add(title);
title = new DefaultMutableTreeNode("HAJIME NO IPPO");
type.add(title);
type = new DefaultMutableTreeNode("BEELZEBUB");
style.add(type);
title = new DefaultMutableTreeNode("TORIKO");
type.add(title);
title = new DefaultMutableTreeNode("New Prince of Tennis ");
type.add(title);
title = new DefaultMutableTreeNode("Ao no exorcist");
type.add(title);
title = new DefaultMutableTreeNode("Bloody Monday");
type.add(title);
title = new DefaultMutableTreeNode("Breaker");
type.add(title);
title = new DefaultMutableTreeNode("Breaker New Waves");
type.add(title);
title = new DefaultMutableTreeNode("Blazer Drive");
type.add(title);
title = new DefaultMutableTreeNode("Code Breaker");
type.add(title);
title = new DefaultMutableTreeNode("GTO Shonan 14 Days");
type.add(title);
title = new DefaultMutableTreeNode("Lock On");
type.add(title);
type = new DefaultMutableTreeNode("Soul Eater");
style.add(type);
title = new DefaultMutableTreeNode("นูระหลานจอมภูติ");
type.add(title);
title = new DefaultMutableTreeNode("Kiss x Sis");
type.add(title);
title = new DefaultMutableTreeNode("Mayoi Neko Overrun!");
type.add(title);
title = new DefaultMutableTreeNode("Kami Sen");
type.add(title);
type = new DefaultMutableTreeNode("Haru to Natsu");
style.add(type);
title = new DefaultMutableTreeNode("Countrouble");
type.add(title);
title = new DefaultMutableTreeNode("Saint Seiya");
type.add(title);
type = new DefaultMutableTreeNode("ฟงอวิ๋น ขี่พายุทะลุฟ้า");
style.add(type);
title = new DefaultMutableTreeNode("กระบี่อิงฟ้า ดาบฆ่ามังกร");
type.add(title);
title = new DefaultMutableTreeNode("Yulgang");
type.add(title);
type = new DefaultMutableTreeNode("ยอดกุ๊กแดนมักร");
style.add(type);
title = new DefaultMutableTreeNode("โคนัน");
type.add(title);
title = new DefaultMutableTreeNode("Gundam");
type.add(title);
title = new DefaultMutableTreeNode("Gundam Seed");
type.add(title);
type = new DefaultMutableTreeNode("Gundam Wing");
style.add(type);
title = new DefaultMutableTreeNode("มือขวากับขาโจ๋");
type.add(title);
title = new DefaultMutableTreeNode("Keroro");
type.add(title);
type = new DefaultMutableTreeNode("Gashbell");
style.add(type);
title = new DefaultMutableTreeNode("Black Butler");
type.add(title);
title = new DefaultMutableTreeNode("Chi'sweet home");
type.add(title);
title = new DefaultMutableTreeNode("Cage of Eden");
type.add(title);
title = new DefaultMutableTreeNode("Iris Zero");
type.add(title);
return root;
}

public void makeButtons(){
JPanel panel = new JPanel();
textSearch = new JTextField(10); //Function Of Search
panel.add(textSearch);
JButton addSearchButton = new JButton("SEARCH"); //Button Of Search
addSearchButton.addActionListener(new ActionListener(){

public void actionPerformed(ActionEvent event){
actionSearch();
}

});
panel.add(addSearchButton); //Function Of AddType
contentPane.add(panel,BorderLayout.SOUTH);
JButton addParentButton = new JButton("ADD TYPE"); //Button Of AddType
addParentButton.addActionListener (new ActionListener(){

public void actionPerformed(ActionEvent event){
DefaultMutableTreeNode selectedNode
= (DefaultMutableTreeNode)tree.getLastSelectedPathComponent();

if(selectedNode==null)return;
DefaultMutableTreeNode parent = (DefaultMutableTreeNode) selectedNode.getParent();
if(parent==null)return;
DefaultMutableTreeNode newNode = new DefaultMutableTreeNode("New"); //เงื่อนไขเมื่อกดสร้างให้แสดงชื่อ NEW
int selectedIndex = parent.getIndex(selectedNode);
model.insertNodeInto(newNode,parent,selectedIndex+1);
TreeNode[] nodes = model.getPathToRoot(newNode);
TreePath path = new TreePath(nodes);
tree.scrollPathToVisible(path);
}
});
panel.add(addParentButton);//Function Of AddTitle
JButton addChildButton = new JButton("ADD TITLE"); //Function Of AddTitle
addChildButton.addActionListener(new ActionListener(){

public void actionPerformed(ActionEvent event){
DefaultMutableTreeNode selectedNode
= (DefaultMutableTreeNode)tree.getLastSelectedPathComponent();
if(selectedNode==null)return;
DefaultMutableTreeNode newNode = new DefaultMutableTreeNode("New");//เงื่อนไขเมื่อกดเพิ่มให้สร้างชื่อ NEW
model.insertNodeInto(newNode, selectedNode, selectedNode.getChildCount());
TreeNode[] nodes = model.getPathToRoot(newNode);
TreePath path = new TreePath(nodes);
tree.scrollPathToVisible(path);
}
});
panel.add(addChildButton);//Function Of Delete
JButton deleteButton = new JButton("DELETE"); //Button Of Delete
deleteButton.addActionListener(new ActionListener(){

public void actionPerformed(ActionEvent event){
DefaultMutableTreeNode selectedNode
=(DefaultMutableTreeNode) tree.getLastSelectedPathComponent();

if(selectedNode!=null&&selectedNode.getParent()!=null)
model.removeNodeFromParent(selectedNode);
}
});
panel.add(deleteButton);
add(panel,BorderLayout.SOUTH);
}

public void actionSearch(){
Enumeration e = root.breadthFirstEnumeration();
boolean FIND = false;
while(e.hasMoreElements()){
DefaultMutableTreeNode node = (DefaultMutableTreeNode)e.nextElement();

if(node.getUserObject().equals(textSearch.getText()))
FIND=true;
}
if(FIND) //เงื่อนไขของการค้นหาในการสร้างMessage box
JOptionPane.showMessageDialog(null, "พบ " + textSearch.getText() + "ในร้าน HomeCatoon");
else JOptionPane.showMessageDialog(null,"ไม่พบ " + textSearch.getText() + "ในร้าน HomeCatoon");
}
}


}