import java.sql.DriverManager;
import java.sql.Connection;
import java.sql.SQLException;
public class OraTestType4
{
	public static void main(String[] args) 
	{
		try
		{
			/*
			Try
					DriverManager.registerDriver( new oracle.jdbc.driver.OracleDriver());
					Connection connection = DriverManager.getConnection("jdbc racle:thin:@202.201.57:1521:myoracle","USER","PASSWORD"); 
			*/
		
		//loading clss from 
		Class.forName("oracle.jdbc.driver.OracleDriver");
		//	DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());
		// Establishing connectiion with Data base software
		Connection con = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1522:orcl","scott","ltiger");

		if (con==null)
			System.out.println("Connection with Database software is not establish...");
		else 
			System.out.println("Connection successfully establish...");
		}
		catch (SQLException e)
		{
			e.printStackTrace();
		}
		catch (ClassNotFoundException e)
		{
			e.printStackTrace();
		}
		catch (Exception e)
		{
			e.printStackTrace();
		}

	}
}

bcm@bcm-laptop:~$ cat Conn.java
import java.sql.*;
class Conn {
  public static void main (String[] args) throws Exception
  {
   Class.forName ("oracle.jdbc.OracleDriver");

   Connection conn = DriverManager.getConnection
     ("jdbc:oracle:thin:@//localhost:1521/v112", "scott", "tiger");
                        // @//machineName:port/SID,   userid,  password
   try {
     Statement stmt = conn.createStatement();
     try {
       ResultSet rset = stmt.executeQuery("select BANNER from SYS.V_$VERSION");
       try {
         while (rset.next())
           System.out.println (rset.getString(1));   // Print col 1
       } 
       finally {
          try { rset.close(); } catch (Exception ignore) {}
       }
     } 
     finally {
       try { stmt.close(); } catch (Exception ignore) {}
     }
   } 
   finally {
     try { conn.close(); } catch (Exception ignore) {}
   }
  }
}
bcm@bcm-laptop:~$ javac Conn.java
bcm@bcm-laptop:~$ export CLASSPATH=/u01/app/oracle/product/11.2.0/dbhome_1/owb/wf/lib/ojdbc14.jar:.
bcm@bcm-laptop:~$ java Conn
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production
PL/SQL Release 11.2.0.1.0 - Production
CORE	11.2.0.1.0	Production
TNS for Linux: Version 11.2.0.1.0 - Production
NLSRTL Version 11.2.0.1.0 - Production
bcm@bcm-laptop:~$