XML with CSS example(Styling your XML document)

Showing XML document with CSS

 Make Simple XML file and put css link refrence at top...(as shown in red) :
 
    <?xml version="1.0" encoding="ISO-8859-1"?>
<?xml-stylesheet type="text/css" href="collegexml.css"?>
<COLLEGE>
  <STUDENT>
    <NAME>ROHAN KANDWAL</NAME>
    <BRANCH>iNFORMATION TECHNOLOGY</BRANCH>
    <ROLLNO>800808122</ROLLNO>
    <YEAR>2008-12</YEAR>
    
  </STUDENT>

  <STUDENT>
    <NAME>SHRISTI BAGGA </NAME>
    <BRANCH>ELECTRONIC COMMUNICATION</BRANCH>
    <ROLLNO>800808122</ROLLNO>
    <YEAR>2009-13</YEAR>
    
  </STUDENT>

  <STUDENT>
    <NAME>SUNIL KUMAR</NAME>
    <BRANCH>COMPUTER SCIENCE</BRANCH>
    <ROLLNO>080800988</ROLLNO>
    <YEAR>2012-16</YEAR>
    
  </STUDENT>
  .

  .
  .
</COLLEGE>

Now your css file "collegexml.css":

COLLEGE
{
background-color: #66aacc;
width: 100%;
}
STUDENT
{
display: block;
margin-bottom: 50px;
margin-left: 13px;
}
NAME
{
color: #FF0060;
font-size:18pt;
}
BRANCH
{
color: #0070FF;
font-size: 16pt;
}
ROLLNO,YEAR
{
display: block;
color: #0865c0;
margin-left: 16pt;
}

output:

JDBC Sample Example

Simple JDBC (java Database connection) Example..

In this we are connecting to a database name "Students" and then retrieving value from a table "Registration" which exists with in the database :

import java.sql.*;

public class JDBCExample {
   // JDBC driver name and database URL
   String JDBC_DRIVER = "com.mysql.jdbc.Driver";  
   String DB_URL = "jdbc:mysql://localhost/STUDENTS";

   //  Database credentials
    String USER = "username";
   String PASS = "password";
   
   public static void main(String[] args) {
   Connection conn = null;
   Statement stmt = null;
   try{
      //STEP 2: Register JDBC driver
     
      Class.forName("com.mysql.jdbc.Driver");

      //STEP 3: Open a connection
      System.out.println("Connecting to a selected database...");
      conn = DriverManager.getConnection(DB_URL, USER, PASS);
      System.out.println("Connected database successfully...");
      
      //STEP 4: Execute a query
      System.out.println("Creating statement...");
      stmt = conn.createStatement();

      String sql = "SELECT id, first, last, age FROM Registration";
      ResultSet rs = stmt.executeQuery(sql);

      //STEP 5: Extract data from result set
      while(rs.next()){
         //Retrieve by column name
         int id  = rs.getInt("id");
         int age = rs.getInt("age");
         String first = rs.getString("first");
         String last = rs.getString("last");

         //Display values
         System.out.print("ID: " + id);
         System.out.print(", Age: " + age);
         System.out.print(", First: " + first);
         System.out.println(", Last: " + last);
      }
      rs.close();
      conn.close();
   }
catch(SQLException se){
      //Handle errors for JDBC
      se.printStackTrace();
     }

   }//end main 
}//end JDBCExample 

Channel Allocation Methodology in Mobile Computing.

Channel Allocation:

One of the critical issue in mobile computing is to provide efficient allocation of communication channel for the better performance of the wireless mobile system. The Channel allocation algorithms should be robust and scalable and some of the allocation methods are briefly described in this blog for learning purpose.

What is Channel Allocation??

Bluetooth Technology Architecture

Bluetooth

As you already know that Bluetooth is a wireless LAN technology designed to connect devices of different functions such as telephones, notebooks, computers (desktop and laptop), cameras, printers, coffee makers, and so on. Bluetooth makes its own spontaneous network whenever we need it i.e. Bluetooth is a kind of Ad-Hoc network. This network made by different devices is known as PICONET.