Software Development Forum

It is very annoying, I have typed it as best I can, but option 2 doesn't work. Option 1 is to take the test in Test.py, option 9 is to quit, and option 2 is supposed to print all the questions and answers. This is the code: [CODE]true = 1 …

Does Delphi have any way to escape symbols embedded in strings? I'm trying to write a database project, and have just run into a rather nasty problem; the db I'm working with, PostgreSQL, refuses to recognize equality to date functions unless the value being tested is contained within a pair …

Need help. How do I fix this code? [CODE]max_points = [25,25,50,25,100] assignments = ["hw ch 1","hw ch 2","quiz ","hw ch 3","test"] students = {"#Max":max_points} def print_menu(): print "1. Add student" print "2. Remove student" print "3. Print grades" print "4. Record grade" print "5. Save Students" print "6. Load Students" …

I've created 2 tables in Access and have created a form for each table in VB5. Each autonumber field is the primary key of it's table. When the first form comes up the autonumber field has a value but when I go to the second form the field is left …

I'm self-teaching myself C with a complete reference book. Unfortunately that means that the author assumes that the reader is familiar with fundamental concepts and doesn't bother commenting the code. Here is an unnecessarily obfuscated code excerpt demonstrating "the use of return statements" along with my attempt to understand what …

I have a problem: How to insert raise in Text()? for example i have file: [code] #my_program.py a=ddd [/code] and other file: [code] #my_file.py: from Tkinter import* root=Tk() text=Text() text.pack() execfile('my_program.py') #text.insert(END,raise) mainloop() [/code] In file my_program is Error. How to insert raise of this error in Text? thanks

Please help can you help me debug my code i cant display the result and the computation for sum is error... help me please :sad: [code] #include <stdio.h> int i,counter; float sum; struct cgrade { char course[50]; float credit[50]; float grade[50]; }; struct cgrade GPA[50]; main(){ printf("Enter number of courses …

I've got a bunch of fields displayed in a form and I can change them on the screen and the changes are saved in the database. How can I make them so they cannot be changed?

i am a little bit confused about the actual usage of the find function of map i have say a vector<string> and i want to return the relative position (or iterator) of a key (of type string) in this vector. now, the find function accepts only one input which is …

Hi, I don't know if this is possible. I have a data structure that is displayed in various tabbed panels in various forms(JList/JCheckList etc.). Some of these panels are able to manipulate the data structure. Is there a way to attach some sort of ActionListener to data structure so whatever …

As far as I know when a check box is check the value should be 1 and when it is not checked it should be 0 correct? In my case if I don't check the box its null and if I do its -1 Here is my code [code]Private Sub …

Again, I don't know what I've done wrong. [code] #include <iostream> using std::cout; using std::endl; #include <cstring> using std::strcpy; using std::strcat; #include <cstdio> using std::sprintf; void destroyMultiCharArray(char * * anArray, int size) { for (int i = 0; i < size; i++) { delete [] anArray[ i ]; } delete …

[code] #include <iostream> using std::cout; using std::endl; #include <cstring> using std::strcpy; using std::strcat; #include <cstdio> using std::sprintf; int main() { char * lb = "(?:[a-z90](?:-?[a-z90]+)+)"; int lbLen = strlen(lb); char * sbFrmat = "(?:%s(?:\\.%s){0,4})"; int sbFrmatLen = strlen(sbFrmat); int sbLen = (lbLen * 2) + sbFrmatLen; char sb[sbLen+1]; sprintf(sb, sbFrmat, …

In my program I want to add records to the database and then reference them by a unique identifier such as a user id. Even if the user name is the same as another, The would be different IDs so I could pull data on the correct one. So my …

I'm trying to use scansets to filter out out some textfiles. #include <stdio.h> int main( void) { int i; char str[ 80], str2[ 80]; scanf("%d %[abcdefg] %s", &i, str, str2); printf("%d %s %s", i, str, str2); getchar(); return 0; } When I input "123abcdtye" I expect the output to be …

I have a text box that will be populated by data, sometimes to long for the form and I wanted to add a vertical scroll bar to it, but I'm not sure how to link them together. I can place it on the form but it doesn't work the textbox. …

Hi ppl, I have made a declaration: char* str; str = " Hi there"; what do i have to do to extract a substring from this? [I]Thanks,[/I] [I]Ishwar[/I]

Hey guys, I was wondering if anyone can help me in terms of using atoi to get my my results to add the 1's of my binary output and then join them together... eg. 110101 and 100101 is 4 and 3 = 43. I was thinking of integer dividing the …

I'm new to VB so my question is probably very simple. anyway here it is.. I want to make a side bar showing one form that is like a sidebar in a web page such as on the left side of the MDI form. Which holds the programs main functions …

I get a segfault when I run the following. Seems to fail at strcpy. [code] #include <cstring> using std::strcpy; int main() { char * word = "word"; strcpy(word, "what"); } [/code] If I change char * word to char word[], it's fine. I thought that both declarations effectively do the …

I'm new to VB...Really new. The main thing I am needing to accomplish is this program I am trying to make. It's just a counter. You click the button and it shows the number of clicks in the label. Well, There are 14 counters in the one program. But I …

I have a dictionary defined say D, I also have initialized it. When I say len(D), some time it gives me correct answer, but some times it throws me error saying [I]UnboundLocalError: local variable 'len' referenced before assignment[/I] can anybody tell me why is this error. Am I wrong some …

Hello everyone, I am trying to get an XTEA algorithm to work. I read the key from another process of which I'm sure it has a valid key at a specific location in memory. My encryption algorithm seemed to work, but when I tested it by making a buffer, encrypting …

how do u write this if then statment but in c++ if g=3282 then g=k; to bad there wasnt a then like there is an else in c++

Hi All, Is the naming convention typically used for C++ vector arrays, with multi-word identifiers, to use an underscore between the words? I'm finishing up a C++ course offered by the local college - I'm taking one of the "classroom: online" sections - and I'm running into that usage in …

ok im getting angry because if i wana keep asking questions then i was told to get a book and read it but thats the problem the reason why i came to this website is besause i foud it verry usefull amd i cant bye a book and eaven if …

What is a closure? I keep reading this word in programming, but never got a good explanation.

Hello - I wrote an application to read mag stripe data from a card, parse it and display it's contents. Now I'm attempting to create a DLL out of that logic. I have trimmed down the program to eliminate all those modules, functions, subs etc., that won't be necessary in …

Hey everyone, Im new here, i have been browsing round these forums for awhile and thought i would get involved. Anyway i have a slight problem... I have a little bit of code that changes a string (eg. john) into its binary representation. What is going wrong, is that my …

Hi, I need to learn how I can use a custom data structure in a JList. In my program when I click the Add button next to the JList a JOptionPane opens and takes a String input. The input is then used to create an object which is placed in …

Hi, I'm a freshman in computer science and a new member to this forum. I'd like to convert the string representation of a number e.g "456" into its integer equivalent i.e. 456. As for character representation of single digits e.g. "6", I'm able to convert it to its integer equivalent …

I'm trying to write a class that randomly generates a number, emulating a dice roll. It runs from the command line (since I have yet to learn any other way of getting user input) taking the number of dice and the type of dice(number of sides). The problem I am …

I am having difficulty running this program. I am using Windows XP along with Microsoft Visual Studio.Net 2003. The error message I get is: Unable to start debugging system could not find exe.file Error: C2109 Fatal Error: C1075 I need to use a while loop to take the number that …

Hi to whoever is ready my post and call for help. I am an absolute novice at VB6 and are trying hard to learn this program off my own back from the internet and an old tutorial book i got my hands on. So far ive managed to build a …

I'm befuddled by something. Here is transcript of the interactive session: [code] >>> range(9).remove(3) >>> >>> print range(9).remove(3) None >>> a = range(9).remove(3) >>> a >>> a = range(9) >>> a [0, 1, 2, 3, 4, 5, 6, 7, 8] >>> a.remove(3) >>> a [0, 1, 2, 4, 5, 6, …

how do i set the permission for read and write into a database? i'm creating a program to view what is in the database(which is a different database application altogether) and reading from it using SQL. Error message shows "No read permission". i looked into the security settings of the …

I have made a program that does the rolling for you for the board game "Risk" I even made it tell only the attackers top two rolled and it says the attacks and defenders rolled in order of highest to lowest. But I need it to say who has to …

Hi, below is my unfinished code.what i realy want help on is how do i display or take the values of a and b to main? [code] #include<iostream> using namespace std; int ReadInput (int,int); float CalcIceCreamCost (); float CalcDeliveryCost (); float DisplayCosts (); int main() { int flava,cart,delivery; flava = …

Ok. This has got to be easy, but I can't get something right. I'm just trying to find a way to enter a few characters (example: cd1) and have it change my current directory. In other words, I'm at root and I want to type cd1 and have it be …

is there anyway to clear the screen like if you are using cmd prompt?? yes i kno im a noob but any help would be greatly appreciated

help me with sessions in python

Hi I have a struct [code] struct s_list { char name[30]; char lowest[30]; int int_value; }LIST[100]; [/code] I want to pass the int_value to a the unix function qsort, but how do i pass structs to a function/procedure? regards

Hi I'm trying to create and use some basic socket. I made a code but the compiler reports an error. I'm using linux ( sys/socket.h library) The code is> [CODE] #include <iostream> #include <cstdlib> #include <sys/socket.h> #include <sys/types.h> #include <unistd.h> #include <arpa/inet.h> #include <signal.h> #include <netinet/in.h> #include <netdb.h> #include <stdio.h> …

Guys i need your help with this problem. I want to check if a record in my database is available or not? My database is stored in microsoft access file. ok. I used the data control that comes in the default tool box and i set up the databasename property …

Can we write a program for GREP SEARCH in particular file?? [B]procedure TForm1.DriveComboBox1Change(Sender: TObject); begin DirectoryListBox1.Drive := DriveComboBox1.Drive; FileListBox1.Drive := DriveComboBox1.Drive; FileListBox1.Directory := DirectoryListBox1.Directory; end; procedure TForm1.DirectoryListBox1DblClick(Sender: TObject); begin FileListBox1.Directory := DirectoryListBox1.Directory; end; [/B] I wrote a program for the selection of file like this. Now I want to search …

Hello everyone, I am trying to create a "proxy" for a program. I will try to explain how I am going to do that. The program I want to write a proxy for sends and receives data to/from a server. The IP and port the client connects to is somewhere …

Hello everyone, I am new to Java programming as well as to these most excellent forums and I have a problem with some sample code from a book that is teaching me Java. The code is supposed to demonstrate packages, access control, interfaces, and encapsulation. My problem is that when …

Hi, I'm still trying to straighten out Tk in my mind. :eek: What I want to do is, under certain circumstances, completely clear the screen and display something new. Instead, it displays the new stuff together with the old. Here's excerpts from the code, with the offending line marked with …

Hi, I am trying to run a start process command. I want the command prompt process tasklist, to write the output to a file. Normally, in command prrompt, you would type tasklist >> "[I]path[/I]" I got one of my other commands, taskkill to work by typing the following: [code]System.Diagnostics.Process.Start("taskkill.exe", "-im …

Hi all, I am working on a problem that should have been very trivial but has turned into a multiple marathon without an end in sight. I have written two very small scripts, one auxiliary script as below with two classes 'Node' and 'Queue' intended for use in a linked …