Java example for oracle connection

import java.sql.*;  
class OracleCon{  
    public static void main(String args[]){  
        try{  
            //step1 load the driver class  
            Class.forName("oracle.jdbc.driver.OracleDriver");  
              
            //step2 create  the connection object  
            Connection con=DriverManager.getConnection(  
            "jdbc:oracle:thin:@localhost:1521:xe","system","oracle");  
              
            //step3 create the statement object  
            Statement stmt=con.createStatement();  
              
            //step4 execute query  
            ResultSet rs=stmt.executeQuery("select * from emp");  
            while(rs.next())  
            System.out.println(rs.getInt(1)+"  "+rs.getString(2)+"  "+rs.getString(3));  
              
            //step5 close the connection object  
            con.close();  
              
        }catch(Exception e){ System.out.println(e);}  
      
    }  
}