64,152 Solved Topics
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| | Hi, I would like to get some suggestions on how to change this program from array to vectors. This program reads an ASCII input file and outputs the character frequency into a text file. I got it to work with the arrays, but I can't figure out where to do … |
| | Forward referencing is allowed during declarations when the undeclared variable is used in the LHS of an expression, but not if its in the RHS. Therefore, the following won't work : [CODE]class A { int a=h; int h; }[/CODE] But the following code works : [CODE]class A { int a=this.h; … |
| | Is it true that during autoboxing, the type.valueOf() method is called (which creates a new object only if another with the same primitive constant is not in the intern list. This applies to cases where interning is allowed. Otherwise, it creates a new object using new() ). Is this right … |
| | Hi All: I am trying to load an image into a div using AJAX. Instead on loading the image, I get �PNG as the result in the div. Does anyone know how to load an image into a div? Best Regards, dennishall |
| | Hi, I want to convert a string to numbers ... i tried a lot of codes.. iam a beginner... Kindly help... Ex: a=1 b=2 c=3 d=4 e=5 f=6 g=7 h=8 i=9 j=10 input value -->abc output value --> 123 input value -->abcj output value -->12310 I mean i want to … |
| | please help me how i would write these two programs. im learning c++ and am having difficulties, if anyone can help i will greatly appreciate it. Write a C++ program that displays the results of the expressions 3.0 *5.0, 7.1 * 8.3 – 2.2, and 3.2 / (6.1 * 5). … |
| | Say I have a class: [CODE]class foo { public: foo(); int len{return 1}; }; [/CODE] Then in main I have a class pointer: [CODE] foo *var[5]; [/CODE] My question is when do class pointers get initialized? Or do they not? How would one initialize them? |
 | Hey guys, I think I have a pretty simple fix here, I just need somebody to point out my error. I'm getting a seg fault after writing to an array of char. I need my function to run through the array and find pairs. If every char in the array … |
 | Hi! Having some major issues my homework assignment. I have to end this while loop when detecting two consecutive newline escape sequences in a row. This is the word problem: Write a program that gives and takes advice on program writing. The program starts by writing a piece of advice … |
| | Hi, I'm trying to build a site that lets users contact each other through the site. Like an email system in the site only. I'm just looking for some keywords to do research on my own. Thanks! |
| | what my code does is it waits for the user to type in "led" and performs the blink function. what i am trying to do is introduce the letter 'p' as a command to stop the blinking. what happens is that blink is only executed once. [CODE]if (!(strcmp(userinput, led))){ //condition … |
 | We have an assignment to write a program finding the nth Fibonacci number. On the web, there are some standard mathematical equations for this, but that would just defeat the purpose of this assignment if I use those formulas. I have my current code down here(with some sketchy back up … |
| | Hi, I'm pretty sure this would be something I'd need javascript for. What i want to do is to recognize when a user presses the enter key while active on a text area and to insert a new line  |
| | [CODE]a.cpp: In function ‘int main()’: a.cpp:39: error: no matching function for call to ‘find(int&, int)’ [/CODE] [CODE]#include <iostream> #include <fstream> using namespace std; int minutes, seconds; char temp; int array_l; bool* sees; int* a; int saade; int main() { ifstream sisf("raadio.sis"); ofstream valf("raadio.val"); /* * How many songs? */ sisf …  |
| | Hi I'm currently writing an Othello game using the Windows API. I have 3 classes in my program, the first class is simply called "Othello" and it handles almost everything. I also have a class called Field that's used to control which fields are black which are white etc. My … |
| | particularly from a txt file. for example if the file reads "name ###-####-#### address" all in one single line. how do i put all three items in three separate variables and print them?  |
| | Can anyone give me some ideas on how to find the middle value between 3 numbers.? I really dont know how to start... I know how find minimum and maximum but finding the Middle value is kinda hard for me... For those C Wizards give me some idea advice please?., … |
| | I am very new to JavaScript. In our class we were assigned a project to create a Web page with 5 text boxes, each with a value attribute of zero. When the user changes the values, it is supposed to call a caclAvg() function. How do I pass 5 values … |
| | Hi all, I am able to run perfectly the following [CODE]<li><a href="javascript:ajaxpage('login.php', 'ajax');">Login</a></li>[/CODE] But not the following [CODE]echo "Welcome Guest!<br><a href=javascript:ajaxpage('login.php', 'ajax');>"[/CODE] I removed the " around the javascript:ajaxpage('login.php'); as it was giving me syntax error. But I am unable to cal login .php upon clicking Login. I tried various … |
 | Ok I have the Hwnd to a particular window I want to work with. Lets call this windows program the "UNWANTED". This UNWANTED window has two things I wish to identify it by. The first one I already have.. which is it's windows handle! Second.. is what I need to … |
| | I have this simple code and I want it running all the time on the server,AND NOT ONLY WHEN IT IS OPENED IN BROWSER TAB. I dont know exactly what is happening in http header but i guess that there is a way to keep it running non stop. Is … |
| | Hey, so I've tried like 50 different guides and so on with how to validate this form, and so far nothing works. When the user hits submit, I would very much like to validate if a button in each row has been selected, ideally it would be nice to have … |
| | Hi everyone, I have a database with X items, and each of them can have one or more of 20+ properties. How I currently make this work is I have a huge table with each of the properties having it's own column, and a boolean to determine does the property … |
| | Hi guys ive got a problem in my Tab control. you see, i have 2 tabs in my form then inside it i i got a [B]ListView[/B]. What i want to do is when a user clicks on the [B]First Tab[/B] some buttons in my form will be disabled but … |
| | hi, how to call code-behind function in java scrip. i am working on asp.net please help me to call the procedure with js. thanks in advance. jack |
| | Hi All, I am using MySql and wrote all my create table scripts directly on the command line client. Now I have no tracks of them. I need all the table scripts present in my database region for future reference. I used the below command to view the script of … |
| | Program descr: Im trying to make a windows manager for windows I might draw in CONSOLE. the plan is to draw manually windows in the console in an objectified way. instead of drawing the windows using console coordinates I create a buffer then use [URL="http://msdn.microsoft.com/en-us/library/ms687404(VS.85).aspx"]writeConsoleOutput[/URL] to write this buffer to … |
| | I looked all over Google, but could not find anything other than: [CODE]File.WriteAllLines();[/CODE] It does not work, it just appends it. Cheers.  |
| | Is it possible to use a timer to be able to count up, stop, and count down and be able to change the speed on the fly? Trying to make a simulator program that behaves like the real unit. The count also needs to stay in the 0000 format. ie; …  |
 | hi there! i'm have a biiig trouble. I've make a simple chatbot, as can learning. The problem is, that I can't insert data into the dictionary without a error. here is the code: [CODE] codes = {} def arraycompare(array1, array2): l = 0 for i in array1: for j in … |
| | [CODE]class hello { } class hello1 { public static void main(String aa[]) { hello ob[]={new hello(),new hello(),new hello()}; hello ob1[]=ob.clone(); // 1 } }[/CODE] ob is an array which is also treated as an object, and hence has a default clone method which is called at (1). But the default … |
| | Hello everyone! I have this code [CODE] string constring = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + DataBasePath + ";Persist Security Info=False;Jet OLEDB:Database Password=""; conn = new OleDbConnection(constring); conn.Open() string searchstring = "SELECT * FROM MyTable WHERE field2=@field2"; OleDbCommand cmdsearch = new OleDbCommand(searchstring, conn); OleDbDataReader reader; cmdsearch.Parameters.AddWithValue("@field2", dgrDoc[1, index].Value.ToString()); reader = cmdsearch.ExecuteReader(); [/CODE] How … |
 | Ok...this is my "HELP ME! HELP ME!" thread.:D I finally got my code to work...almost. The form posts to my database but only the first query data inserts and the last value of the third query. All the form fields are correct and the problem appears to be with my … |
| | Hey guys, So, I need to add booleans on my project for the final piece. I have all of it done but the booleans. Basically, I checked about 10+ links on google, and none of them really explained how to do booleans. So, what I need is something that does …  |
| | Will the older c++ commands (leaving that of conio.h) work with a new compiler like g++ if i use "using namespace std;" and use 'int' with main() rather than 'void' and don't use .h for including a header file?  |
| | I've built a website using php and mysql. I wanted to host this site. So I registered a domain name and buy a web hosting package. The webhoasting package provider gave me 2 name server addresses. I pun the in the domain name control panel. But still when i type … |
| | im writing this program for an assignment and im getting errors can anyone help make some suggestions? i have to have the program print out balances for saver1 and saver2 then change the percentage rate then reprint [CODE]//header definition file for savings account #ifndef SAVINGS_ACCOUNT_H #define SAVINGS_ACCOUNT_H class SavingsAccount { … |
| | im having trouble pin-pointing why my loop continues to execute infinetley. can someone point out what im doing wrong in my dowhile loop? [code=cplusplus] #include<iostream> #include<string> using namespace std; int main() { string command; char again; do { cout << "Welcome to the Intrepeter!" << endl; cout << "Please feel … |
| | I have several queries on my site. I have a search.cfm that queries my database, then for each records I have a link coded in on the #item# column of my records. I also have the ability for users to go to "section" pages that have queries based on the … |
| | I have the following funtion in my ComboBoxControl class, and it only returns to me the control of the comboBox. The foreach works fine but my problem is how to return the ComboBox, becuse if the ComboBox doesn´t exists I need to return NULL or something else. How can I … |
| | i get an error when i try and do this. [code=c] private void button2_Click(object sender, EventArgs e) { DataSet ds = new DataSet(); DBconnect db = new DBconnect(); Global.GlobalVar = textBox1.Text; string Co = new Password('J', textBox1.Text).SetSql(); ds = db.GetDataSet(Co); DataTable dt = ds.Tables[0]; if (dt.Rows.Count == 0) { if … |
| | hi, How to find Date Differance in c#. in vs2008. thanks in advance. jack  |
 | Hey there, so im making a calculator to make my life a little bit easier ^^ so far its working well, I just got one problem o.O! If I enter a number with a comma like 0,5 into one of the textboxes and click calculate it will terminate, what can … |
| | Hi, If I have a std::vector of objects and I need to iterate through all its elements, is it faster to do: [code] for (vector::iterator i = myvec.begin(); i != myvec.end(); ++i) //blah [/code] or [code] for (int i = 0; i < myvec.size(); ++i) // myvec[i] blah [/code] Or … |
| | I have a problem referring to Geometric progression Using a few mathematics formula I have to compare the value En that I calculate using Sinfinite and Sn. This value En(which determines accuracy of the calculated number I believe) should than be compared to an arbitrary value E. When En becomes … |
| | I've used the code below previously with success, but I'm having problems this time around, and hoped someone could point me in the right direction. I complete the form, click submit, and receive the message confirming data has been added. However, when I look at the database, there's nothing there. … |
| | Hello, I am supernew at php. I understand Javascript, some intermediate Java, expert html, css, Actionscript. Please advise as to the issue below. My company has acquired a php-based Web site. It has a button in the global main navigation header that we need to remove. Here is the following … |
| | i m unable to interrpret my package from any other drive???? i mean ..i hav created my package, compiled it bt unable to run it... can anyone tl d way of running it or setting the path... the coding is done in command prompt |
| | Hi All, I have one index.php like below ..... ...... <head> <script type="text/javascript"> ajax function to call page1, page2 etc... </script> </head> <body> <div id="leftcolumn"> <a href="javascript:ajaxpage('page1.php', 'rightcolumn');">Page1</a> <a href="javascript:ajaxpage('page2.php', 'rightcolumn');">Page2</a> <a href="javascript:ajaxpage('page3.php', 'rightcolumn');">Page3</a> </div> <div id="rightcolumn"><h3>Choose a page to load.</h3></div> <div style="clear: left; margin-bottom: 1em"></div> </body> </html> Now if … |
| | I am using python code to transmit data collected (Wii Nunchuck) via I2C wirelessly to another wireless node and then display the information about button press and also roll, yaw and pitch (X,Y,Z) data. The code uses Wx python for frame/window display. Part of the code was copied from the …  |
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