ahmed_fawzy

Could Any one Give me The Main Purpose of, Why we could use the Factory Design pattern ?. what is the problem that this Design pattern intent to solve ?. What is the Concept of The Factory Design pattern ? i would be very grateful if anyone could help me …

Hello everyone i looking forward to learn j2ee using Oracle 10g platform ... anyone have Tutorials for this. i'd be very thankful for this help. hint..> i use jdeveloper thanks in advance

Please Urgent help....! the difference between float and double... but a Detailed one.... because it makes me confusing and i'll be very grateful....

Hey Guys i wonder if any one could help me in setting a background image for JDesktopPane instead of changeing background colors... i'll be gratefull for Detailed Describtion of any written code Thank you people in advance.

Hey Guys i want to create keyUp and keyDown Events on JTable to get value at particular cell as i press up key and Down Key ,i tried to do it and succeeded in KeyDown Event which is : [CODE] ProductTable.addKeyListener(new KeyAdapter() { public void keyPressed(KeyEvent k){ ProductTable_KeyPressed(k); } }); …

why when i write this down : [CODE] private Statement getOrders_st=null; public ResultSet getOrders(String UserName) { ResultSet Rs=null; try { getOrders_st = Conn.createStatement(); Rs = getOrders_st.executeQuery("select order_history , ordr_date , ordr_total from orders where ordr_userid = '"+UserName.toLowerCase()+"'"); } catch(SQLException ex) { ex.printStackTrace(); } return Rs; }[/CODE] give NullPointerException at [CODE]getOrders_st …

hello every one my name is ahmed and i'm studying computer science and i in my 3rd year and i will begin to work on my graduation project......and i learned c# [CONSOLE application]....ADO.NET......ASP.NET......SQL SERVER 2005 [IMPLEMENTAION] .....and i really don't have the idea to work on it ...so i need …