Writing to file jsp

Just updating the stuff from jsps to text files and delteing afterwards etc. NullPointerException data. Thanks for your time to help me sort out the problem, I tried it many time but does not seems to be working.

I sont have any idea how to solve this problem. I am looking for some sample application to get an idea that how the jsp communicate to the servlets. If i see the logic in this program is clear , the jsp is posting to the servlet and servlet podts to the file. Code Line In the Scriptlet tags where we are taking two variables num1 and num2. Third variable num3 is taken which adds up as num1 and num2. The output is num3. Code Line Here we are using expression tags where we are using an expression by multiplying two numbers i.

The expression number is where we are multiplying two numbers num1 and num2 and adding that number with the third number. It is been ignored by the JSP container. Code Line 1: Here we are using directives like language, contentType and pageEncoding. I am writing a pdf using itext where i add a image I am using simple java program to write the pdf. Not a servlet. I have a doubt Writing and Reading A File Writing and Reading A File Hello, I've been trying to learn writing and reading data from file for our assignment, but just stuck on how to proceed FirstName, LastName, Age.

I also made an empty file I named "contactsFile. How can I do the same I'm using NetBeans 6. JSP write to a text file Ask Question. Asked 9 years, 6 months ago. Active 6 years, 10 months ago. Viewed 9k times. Tell me your expert opion how to fix this? Improve this question. Add a comment. Active Oldest Votes. Improve this answer. Shaon Hasan Shaon Hasan 6 6 silver badges 17 17 bronze badges.

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