First JDBC Program

package jdbctest;
import java.sql.*;

public class TestConnection {
public TestConnection() {
try {

Class.forName("oracle.jdbc.driver.OracleDriver");
System.out.println("Oracle JDBC driver is loaded .");

Connection conn = DriverManager.getConnection("jdbc:oracle:thin:cric/buzz@seatsrvr:1521:orcl");
System.out.println("Connection is established to seatsvr:1521 with user=cric password=buzz tns connection string being orcl.");

DatabaseMetaData dm = conn.getMetaData();
System.out.println("Major Version= " + dm.getDatabaseMajorVersion() +
" Minor Version= " + dm.getDatabaseMinorVersion() +
" Product Name= " + dm.getDatabaseProductName());

System.out.println("Printed the Driver Information!");


}
catch(Exception e) {
System.out.println("Exception"+ e);
}
}

public static void main(String[] args)
{
TestConnection t = new TestConnection();
}
}

Start Learning JDBC Programming here
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