What are the best libraries for interactive webcharts allowing the user to add data points by clicking? I would like to basically have a graphical input device sitting on the browser. I think google charts and JFreeChart can do something like this. Wide open license is a plus but this is just for a learning project so not a big deal. A...
In PHP, I know that using parameterized queries is the best way to prevent SQL injection. But what about sanitizing user input that will be used for other purposes, such as: Displaying back to a user (potential cross-site scripting vector) Addressing an email or filling in the message body Is htmlentities() the best way to sanitize ...
Hi all, I want to know what disadvantage of scanf() exist. In many of a sites I have read that using scanf will cause buffer overflow some times. What is the reason for that, and is there any other drawbacks with scanf? ...
I am writing a program that reads the input from a file and then prints it to the screen. When I run it without taking the input from the file, it works perfectly fine. However, every time I try to run it from the file it gives me an "Exception in thread "main" java.util.NoSuchElementException: No line found at" error that occurs every p...
hi all.. Consider two php scripts(o.php & t.php) o.php contains both html and php. html here gets user input for eg:user name and password this information is passed to php using php-self. I want the user input of o.php passed to t.php without any modification in o.php. I ve used include and require in the t.php but the problem is it...
Say we have a form where the user types in various info. We validate the info, and find that something is wrong. A field is missing, invalid email, et cetera. When displaying the form to the user again I of course don't want him to have to type in everything again so I want to populate the input fields. Is it safe to do this without san...
I have this code in Python inputted = input("Enter in something: ") print("Input is {0}, including the return".format(inputted)) that outputs Enter in something: something Input is something , including the return I am not sure what is happening; if I use variables that don't depend on user input, I do not get the newline after for...
Let say i want to read the integers a, b and c from stdin (in one line, do not need to press return after each number). In c++, i would just do: cin >> a >>b >> c; How to do this in Python ? ...
Is there some way to have a keyboard of type UIKeyboardTypeNamePhonePad start in phone number pad mode rather than alphabetic? The keyboard works well for what I need but I'd like it to start in the "other" mode since that is more likely what the user will enter. ...
In my rails app I'd like to let users submit custom "themes" to display data in various ways. I think they can get the data in the view using API calls and I can create an authentication mechanism for this. Also an authenticated API to save data. So this is probably safe. But i'm struggling with the best way to let users upload/submi...
My problem: I have two ranges “R16” and R01”. These ranges were set by swiping a range and then renaming it in the upper left panel of sheet. Each range requires users to fill in each cell with a value. R16 requires users to enter a number of 0 through 6. The range R01 requires a value of 0 or 1 to be entered. NO cell can be left...
For an Android program, I am having trouble handling key down and key up events, and the problem I am having with them can almost certainly be generalized to any sort of user input event. I am using Lunar Lander as one of my main learning devices as I make my first meaningful program, and I noticed that it was using onKeyDown as an over...
My problem: I have two ranges R16 and R01. These ranges were set up by swiping each range and then renaming them in the upper left panel of the sheet. Each range requires users to fill in each cell with a value. R16 requires users to enter a number of 0 through 5. The range R01 requires a value of 0 or 1 to be entered. NO cell can be lef...
I've been looking into some of the WYSIWYG editors (TinyMCE, FCKEditor, etc.) and they all seem to offer a lot of options. However, one vital feature that seems to lack is a simple "add custom html" option which would allow the user to input any of these embed-snippets you find all around the web these days, for example a youtube video....
I have a drop down box and some text input fields below it. Based on which item from the drop down menu the user selects, I would like to disable some of the fields. I think I am failing to target the input fields correctly but I can't figure out what the problem is: Here is the script I have gotten so far: $(document).ready(function()...
For example, if I need that the user specifies the number of rows and columns of a matrix: PROMPT: Number of rows?: USER INPUT: [a number] I need that R 'waits' for the input. Then save [a number] into a variable v1. Next, PROMPT: Number of columns?: USER INPUT: [another number] Also save [another number] into a variable v2. At ...
I have a string in PHP and I want it to match the regex [A-Za-Z0-9]. How can I do this? ...
For an assignment I've made a simple C++ program that uses a superclass (Student) and two subclasses (CourseStudent and ResearchStudent) to store a list of students and print out their details, with different details shown for the two different types of students (using overriding of the display() method from Student). My question is abo...
hey, i'm a noob to c++ (and coding in general) i'm looking for an easy way to take two doubles (at once) from the keyboard and store them in a struct i've created called "Point" and then ultimately store the Point into a vector of Points that's a member of a class (called "Polygon"). i know i could do it with a scanf but need to know how...
I need to prompt the user to enter his/her zip code at certain times in my iPhone application. I cannot store it or get it from the user's current location. What is the optimal input method? I started with a 5 wheel picker. This seemed like a bad direction, so I opted for a PIN-like entry screen. My implepentation is about the same as ...