Program to implement the concept of creating Treeview

/* Program : 13
   Program to implement the concept of creating Treeview according to your marks of each subject of each semester under Gujarat Technological University,Ahmedabad
   Development Status : Completed and Tested
   Developed by : Malhar Vora
   Developed on : 20-11-2010
   Email        : vbmade2000@gmail.com
   WebSite  : www.malhar2010.blogspot.com
 ***********************************************************************************************************************************************/
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.tree.*;
import java.awt.*;
import java.awt.event.*;

public class P13 extends JFrame 
{
 
 
 JTree mainTree = null;
 
 //GTU Node
 DefaultMutableTreeNode rootNode=null;
 
 //Semester Nodes
 DefaultMutableTreeNode nodeSem1=null;
 DefaultMutableTreeNode nodeSem2=null;
 DefaultMutableTreeNode nodeSem3=null;
 
 //First Sem Subjects
 DefaultMutableTreeNode nodePlSql=null;
 DefaultMutableTreeNode nodeAccount=null;
 DefaultMutableTreeNode nodeCPractical=null;
 DefaultMutableTreeNode nodeFop=null;
 DefaultMutableTreeNode nodeFco=null;
 DefaultMutableTreeNode nodeDm=null;
 DefaultMutableTreeNode nodeDbms=null;
 
 //Second Sem Subjects
 DefaultMutableTreeNode nodeToc=null;
 DefaultMutableTreeNode nodeConm=null;
 DefaultMutableTreeNode nodeCpp=null;
 DefaultMutableTreeNode nodeCppPractical=null;
 DefaultMutableTreeNode nodeDBMS2=null;
 DefaultMutableTreeNode nodeDs=null;
 DefaultMutableTreeNode nodeDsPractical=null;
 
 //Third Sem Subjects
 DefaultMutableTreeNode nodeJava=null;
 DefaultMutableTreeNode nodeJavaPractical=null;
 DefaultMutableTreeNode nodeConsm=null;
 DefaultMutableTreeNode nodeSs=null;
 DefaultMutableTreeNode nodeOs=null;
 DefaultMutableTreeNode nodeOsPractical=null;
 DefaultMutableTreeNode nodeSoodam=null;
 
 
 
 P13()
 {
 
  rootNode = new DefaultMutableTreeNode ("Gujarat Technological University");
  
  nodeSem1 = new DefaultMutableTreeNode ("Semester 1");
  nodeSem2 = new DefaultMutableTreeNode ("Semester 2");
  nodeSem3 = new DefaultMutableTreeNode ("Semester 3");
  
  //First Sem Nodes
  nodePlSql = new DefaultMutableTreeNode ("PLSQL");
  nodeAccount = new DefaultMutableTreeNode ("Account and ERP");
  nodeCPractical = new DefaultMutableTreeNode ("C Practical");
  nodeFop = new DefaultMutableTreeNode ("FOP");
  nodeFco = new DefaultMutableTreeNode ("FCO");
  nodeDm = new DefaultMutableTreeNode ("Discrete Mathematics");
  nodeDbms = new DefaultMutableTreeNode ("DBMS");
  
  
  //Second Sem Nodes
  nodeToc = new DefaultMutableTreeNode ("TOC");
  nodeConm = new DefaultMutableTreeNode ("CONM");
  nodeCpp= new DefaultMutableTreeNode ("C++");
  nodeCppPractical = new DefaultMutableTreeNode ("CPP Practical");
  nodeDBMS2 = new DefaultMutableTreeNode ("DBMS");
  nodeDs = new DefaultMutableTreeNode ("Data Structures");
  nodeDsPractical= new DefaultMutableTreeNode ("Data Structures Practical");
  
  //Third Sem Nodes
  nodeJava = new DefaultMutableTreeNode ("Java");
  nodeJavaPractical= new DefaultMutableTreeNode ("Java Practical");
  nodeConsm= new DefaultMutableTreeNode ("CONSM");
  nodeSs = new DefaultMutableTreeNode ("System Software");
  nodeOs = new DefaultMutableTreeNode ("Operating System");
  nodeOsPractical = new DefaultMutableTreeNode ("OS Practical");
  nodeSoodam = new DefaultMutableTreeNode ("SOODAM");
  
  
  //Adding first sem nodes to 1st sem main node
  nodePlSql.add(new DefaultMutableTreeNode("40"));
  nodeSem1.add(nodePlSql);
  
  nodeAccount.add(new DefaultMutableTreeNode("40"));
  nodeSem1.add(nodeAccount);
  
  nodeCPractical.add(new DefaultMutableTreeNode("70"));
  nodeSem1.add(nodeCPractical);
  
  nodeFop.add(new DefaultMutableTreeNode("45"));
  nodeSem1.add(nodeFop);
  
  nodeFco.add(new DefaultMutableTreeNode("50"));
  nodeSem1.add(nodeFco);
  
  nodeDm.add(new DefaultMutableTreeNode("30"));
  nodeSem1.add(nodeDm );
  
  nodeDbms.add(new DefaultMutableTreeNode("20"));
  nodeSem1.add(nodeDbms);
  
  
  
  //Adding second sem nodes to 2nd sem main node
  nodeToc.add(new DefaultMutableTreeNode("20"));
  nodeSem2.add(nodeToc);
  
  nodeConm.add(new DefaultMutableTreeNode("50"));
  nodeSem2.add(nodeConm );
  
  nodeCpp.add(new DefaultMutableTreeNode("57"));
  nodeSem2.add(nodeCpp);
  
  nodeCppPractical.add(new DefaultMutableTreeNode("37"));
  nodeSem2.add(nodeCppPractical);
  
  nodeDBMS2.add(new DefaultMutableTreeNode("35"));
  nodeSem2.add(nodeDBMS2);
  
  nodeDs.add(new DefaultMutableTreeNode("10"));
  nodeSem2.add(nodeDs);
  
  nodeDsPractical.add(new DefaultMutableTreeNode("20"));
  nodeSem2.add(nodeDsPractical);
  
  
  
  //Adding third sem nodes to 3rd sem main node
  nodeJava.add(new DefaultMutableTreeNode("35"));
  nodeSem3.add(nodeJava);
  
  nodeJavaPractical.add(new DefaultMutableTreeNode("35"));
  nodeSem3.add(nodeJavaPractical);
  
  nodeConsm.add(new DefaultMutableTreeNode("35"));
  nodeSem3.add(nodeConsm);
  
  nodeSs.add(new DefaultMutableTreeNode("35"));
  nodeSem3.add(nodeSs);
  
  nodeOs.add(new DefaultMutableTreeNode("35"));
  nodeSem3.add(nodeOs);
  
  nodeOsPractical.add(new DefaultMutableTreeNode("35"));
  nodeSem3.add(nodeOsPractical);
  
  nodeSoodam.add(new DefaultMutableTreeNode("35"));
  nodeSem3.add(nodeSoodam);
  
  
  
  rootNode.add(nodeSem1);
  rootNode.add(nodeSem2);
  rootNode.add(nodeSem3);
  
  mainTree = new JTree(rootNode);
  
  setSize(400,500);
  setDefaultCloseOperation(EXIT_ON_CLOSE);
  setTitle("Program 13 - Developed by Malhar Vora");
  setVisible(true);
  
  this.getContentPane().add(mainTree);
    
 }
 
 
 public static void main(String []str)
 {
  P13 p = new P13(); 
 }

 
}