connect DB2 with Java
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.DriverManager;
import java.sql.Connection;
import java.sql.SQLException;

public class connection {
public static void main(String[] argv) {
try {
Class.forName("COM.ibm.db2.jdbc.app.DB2Driver");
}
 catch (ClassNotFoundException e) {
 System.out.println("Please include Classpath  Where your DB2 Driver is located");
 e.printStackTrace();
 return;
 }
System.out.println("DB2 driver is loaded successfully");
Connection conn = null;
PreparedStatement pstmt = null;
ResultSet rset=null;
boolean found=false;
try {
conn = DriverManager.getConnection("jdbc:db2:sabarish","db2admin","Murugasaranam");
    if (conn != null)
{
   System.out.println("DB2 Database Connected");
}
   else
{
      System.out.println("Db2 connection Failed ");
 }
 pstmt=conn.prepareStatement("Select * from bo");
rset=pstmt.executeQuery();
  if(rset!=null)
{

 while(rset.next())
{
 found=true;
 System.out.println("Class Code: "+rset.getString("clcode"));
 System.out.println("Name: "+rset.getString("name"));
}
}
if (found ==false)
{
System.out.println("No Information Found");
}
} catch (SQLException e) {
System.out.println("DB2 Database connection Failed");
e.printStackTrace();
return;
}
}

    }

java.lang.ClassNotFoundException: COM.ibm.db2.jdbc.app.DB2Driver
 at java.net.URLClassLoader$1.run(Unknown Source)
 at java.security.AccessController.doPrivileged(Native Method)
 at java.net.URLClassLoader.findClass(Unknown Source)
 at java.lang.ClassLoader.loadClass(Unknown Source)
 at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
 at java.lang.ClassLoader.loadClass(Unknown Source)
 at java.lang.Class.forName0(Native Method)
 at java.lang.Class.forName(Unknown Source)
 at connection.main(connection.java:11)

Class.forName("com.ibm.db2.jdbc.app.DB2Driver");

Class.forName("com.ibm.db2.jcc.DB2Driver");