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Comment

ashitha
copy multiple file,
May 12, 2007 at 4:42 PM

can you tell me how to copy muliple files at a time. I am trying to copy the file to another file dynamically.but I didn't get.error:null pointer exception displayed.
here my code:can u tel what's the error in this programme & how can i correct it..
<%@ page language="java"%>
<%@ page import="java.io.*"%>
<%@ page import="java.text.*"%>

<html>
<head>
<title>
</title>
</head>
<body>
<%
try
{

String cname=request.getParameter("cname");
String category=request.getParameter("category");
String submit=request.getParameter("submit");
int len;
File f1=new File(request.getParameter("file"));
File f2=new File("ee/file1.txt");

InputStream is=new FileInputStream(f1);
OutputStream os=new FileOutputStream(f2);

byte buf[]=new byte[1024];


%>
Company Name is:<%out.println(cname);%>
Category :<%out.println(category);%>
<%

while((len=is.read(buf))>0)
{
os.write(buf,0,len);
out.println("file copied");
}


is.close();
os.close();
out.println("file copied");
}
catch(FileNotFoundException ex)
{
out.println(ex);
}
catch(IOException eo)
{
out.println(eo);
}
catch(Exception e)
{
out.println(e);
}

finally
{
out.println("");
}
%>

</body>
</html>
thank u..

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