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variable Initialisation in JSP

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variable Initialisation in JSP

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Join Date: Dec 2006

Posts: 54

Reputation: staneja is an unknown quantity at this point

Rep Power: 2

Solved Threads: 1

staneja

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Junior Poster in Training

variable Initialisation in JSP

Mar 16th, 2007

I am new to JSP and was trying a very simple program that adds/Divide/multiply/Subtract 2 numbers
I am taking two numbers from a web page and as per the button pressed performing the action on JSP page. I have kept a vraiable c for output

If i write int c=0 ;then it works fine but if i only write int c and then code its not working
I have never observed this behavior in core Java.Is variable initialisation is mandatory in JSP.FOllowing is code i am using that throws exception

Help with Code Tags

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 <body><% 
            int a=Integer.parseInt(request.getParameter("t1"));
            int b=Integer.parseInt(request.getParameter("t2"));
            int c ;
            String label=request.getParameter("b1");
            if (label.equals("add"))
                c=a+b;
            else
                if (label.equals("sub"))
                c=a-b;
                else
                    if (label.equals("mul"))
                    c=a*b;
                    else
                        if (label.equals("div"))
                        c=a/b;
        %>
         <% out.print(c);%>
    </body>

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variable Initialisation in JSP

variable Initialisation in JSP

variable Initialisation in JSP