jsp authentication

[tascoa]

Hi, I have login JSP:

<%
String username=request.getParameter("username");
if (username=="tom")
    {
        out.println("YES");
    }
else
    {
        out.println("NO");
    }
%>

and the output in browser, if I enter username tom is NO. Why is this error? I think, that the if statement is right. Thanks a lot for Your ideas. :)

[Fubarable]

Avoid comparing Strings with ==. Instead use either the equals(...) method or equalsIgnoreCase(..).

For instance,

<%
String username=request.getParameter("username");
if (username.equalsIgnoreCase("tom"))
    {
        out.println("YES");
    }
else
    {
        out.println("NO");
    }
%>