public class RetiveInformation {
public static void main(String[] args) {
    Class.forName("oracle.jdbc.driver.OracleDriver");
    System.out.println("driver is loded");
    Connection cn = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:orcl", "system","oracle");
    System.out.println("connection stablish");
    Statement stmt = cn.createStatement();
    String str = "select * from student11";
    ResultSet rs = stmt.executeQuery(str);
    while(rs.next()){
        System.out.println(rs.getInt(1)+" ");
    }
}