..................
String url = "jdbc:oracle:thin:@"+cs.getHost()+cs.getDbname();
 try {
      DriverManager.registerDriver( new  oracle.jdbc.driver.OracleDriver());
      con = DriverManager.getConnection(url, cs.getLogin(), cs.getPass());
..................

 import  oracle.jdbc.pool.OracleDataSource;

OracleDataSource.setURL("jdbc:oracle:thin:@//" + sHost" + ": 1521 /" + sSID);
OracleDataSource.setUser("user");
OracleDataSource.setPassword("password");
Connection conn = OracleDataSource.getConnection();

 import  java.sql.*;
 import  oracle.jdbc.pool.*;

 public   class  TestThinDSApp {

   public   static   void  main(String args[])  throws  ClassNotFoundException,
      SQLException {

    // These settings are typically configured in JNDI
    // so they a implementation specific
    OracleDataSource ds =  new  OracleDataSource();
    ds.setDriverType("thin");
    ds.setServerName("rabota");
    ds.setPortNumber( 1521 );
    ds.setDatabaseName("proba.rabota"); // sid
    ds.setUser("scott");
    ds.setPassword("1234");

    Connection conn = ds.getConnection();

    Statement stmt = conn.createStatement();
    ResultSet rset = stmt
        .executeQuery("select 'Hello Thin driver data source tester '||"
            + "initcap(USER)||'!' result from dual");
     if  (rset.next())
      System.out.println(rset.getString( 1 ));
    rset.close();
    stmt.close();
    conn.close();
  }
}

C:\oracle\ora92\jdk\bin>javac TestThinDSApp.java

C:\oracle\ora92\jdk\bin>java TestThinDSApp
Exception in thread "main" java.lang.NoClassDefFoundError: javax/sql/DataSource
        at java.lang.ClassLoader.defineClass0(Native Method)
        at java.lang.ClassLoader.defineClass(ClassLoader.java:486)
        at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:111)
        at java.net.URLClassLoader.defineClass(URLClassLoader.java:248)
        at java.net.URLClassLoader.access$100(URLClassLoader.java:56)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:297)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:286)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:253)
        at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:313)
        at TestThinDSApp.main(TestThinDSApp.java:11)