Software Development Forum

hello, i'm a great beginner in Python. But now my problem is that i have to model the growth of plant development using L-system.... but where to start this?? please, i need your advices otherwise i m lost.... please. i hope to hear from your very soon....thx

I am building a program requiring making some classes with inheritance. I can't seem to be able to access the members of the class objects. My code looks like this: [CODE]#include <iostream.h> #include <stdlib.h> #include <time.h> class Animal{ public: int number; int legs; Animal(){ number = rand()%9; } }; class …

hey guys, im having problem converting this to a while loop. int lineB; int starB; for(lineB=1; lineB<=10;lineB++) { for(starB=10; starB>=lineB; starB--) System.out.print("*"); System.out.println(); } System.out.println(); Can it be written like this? int lineB=1; int starB=1; while(lineB<=10) { while(starB>=lineB) { StarB--; System.out.print("*"); System.out.println(); } lineB++; }

how do i chck that a string contains integers or characters or is empty???

Hi, I downloaded the open source project Guitar Tuner ([url]http://sourceforge.net/projects/guitartuner/[/url]) Inside it there is an index.html file, a TunerApplet.jar file and a TunerApplet.java file (As well as some images and GPL etc.) When i open index.html the applet displays as it should however if I try to recompile (Even without …

Hello all, I would be grateful for your advice regarding something I tried to do using unique() but it didn't work. I have a two dimensional numpy array that looks like that (but much larger): >>> pop_A1 array([[10, 2, 10], [10, 9, 10], [10, 9, 10], [10, 9, 10], [10, …

want to be able to count the words in an array or a string :S but i am not sure how to do it could i get some help please what i want to do is be able to tell how many words have been entered. so i will need …

I am doing a homework problem and am having a hard time understanding exactly how I should be doing this. Any nudge in the right direction would be helpful. :) The problem is as follows: Ship, CruiseShip, and CargoShip Classes Design a Ship class that the following members: • A …

I'm having trouble with some syntax errors, and also wanted to get an opinion of what I've written will work as needed. I'm writing an awk report script to organize data from a file and calculate the amount of sales. There are 3 kinds of lines that we will need …

Hi, there! I'm pretty new to the programing world and I have a question. How can I write this code so it returns to surv1.set_sex = raw_input? after the "not in sex statement"? It's really confusing maybe I should try and write it in someother way? I don't quite understand …

hey, i wrote a program to create a hash table using an array of numbers, but I do not know how to display the actual table on my screen. Does anyone know how to display my results? So far, I am able to print the numbers that I have in …

Hi, Please can anybody help me how i can create plugin to Postgre SQL/PostGis? Thank you very much

Hi again, much questions today! So i'm having an Form for adding pictures with som details to a database. Everythings works well but some attributes i wish the user didnt need to enter, such as ,type (jpeg, gif), size, date.

hello, I'm writing calculator with Python and i came across few problems. First problem is that if user enters letters it would ask him to reenter them i thought i could do it like this [code=python]try: class num: x = float(raw_input("number\n")) numb = num() except: bull = False else: bull …

Hello daniweb, I am new to java and am trying to wrap my head around parsing XML with Java. I've decided to try DOM with Xerces to start because it seems pretty simple, however I am getting NoClassDefFound errors. I'm sure it's something really simple that I have overlooked due …

I'm using Visual Studio 6.0 for C++ and while I'm stepping through my code in Debug mode, I'm not able to view any of my static variables in the "Locals" section of the context window. I know there has to be a way to set this up, as the computers …

I'm having a few issues with my Pig Latin program. First, The program doesn't loop correctly. I need it to keep prompting the user for input until the user presses CTRL+D, but I can't figure out how. Right now, it never re-writes the line "Enter some text (CTRL-D to end):". …

String is an object, but it can be initialize without (), like [CODE]string str;[/CODE] However if I define a user defined object, I must initialize it like: [CODE]myclass myobj(); [/CODE] How is it possibel to not use: () ?

This question has largely already been posted, and I apologize for that. However, I cannot get the max an min values to change from anything except -1. I'd love to make them actually work; I feel like the comparison statements are correct. I know the counter is working properly, and …

An integer is said to be prime, if it is divisible by only 1 and itself. For example, 2,3,5 and 7 are prime, but 4,6,8 and 9 are not. Write a function that determines whether a number is prime. Use this function in a program that determines and prints all …

The questions are at the bottom of the code. Need Java Help! I don't know what I'm doing or where to start!? Here is the first program: public class IntClass { private int x; public IntClass() { x = 0; } public IntClass(int num) { x = num; } public …

Hi!totally new, i did an undergrad in non-python related science, and I'm trying to move into incorporating python into my postgrad, so my questions right now are fairly basic. I basically want to run muscle (a sequence alignment tool) on a large number of files.how do i start a python …

hi i need a litle help.....i must write a program that search for a string in a text file and return the line in the text file were string was found...string its an argv....i wrote this code but it returns the whole text file when i search for something [CODE=c] …

how can i declare something like this? int main(int argc, char *argv[]){ char *users[] = {}; char *names[] = {}; openPasswd(users, names); return 0; } void openPasswd(char &users[] = {}, char &names[] = {}){ } as you see i want to populate the 2 char arrays from the function back …

I'm working on a Floyd's Algorithm type Java program. What I have done so far is represent a directed graph in a 2d array, and I am trying to transform that into a 2d array representing the graph's paths of length 2. I planned for it to fill the adj2[][] …

hi all .. just want to ask if anyone have an idea how can i move image down throug keyboard cursors up an down .. i know that there is the keydown event and the keyup event but really i don't know how to write the code .. other qusetion …

Hello guys, i need help. I just began to learn c++, and i have a problem. How to write a program, which count numbers in a interval from k to n. I now the program is simple but i just can t bring it to work. Im using the loop …

OK i have been stuck with this particular problem and driving me crazy any insight would be helpful. I am trying to create a program that asks user for a string and using the scanner method count the instances it appears in a txt file below is the code oh …

Hi, I have the following piece of code. I do the following here 1)open a file. 2) Print the filepointer positon . I get 0 3)Read the file in a while loop till i reach the end 4)close the file 5)Open the same file 6) Print the file pointer position …

Hello, In my project I have to capture screen activity (including audio) to a video file. I try using JMF for this. I don't know how to use those two classes: DataSource.java and LiveStream.java. I read them line by line. I probably have to create a Processor and feed it …

Required to use PriorityQueue to implements Dijkstra’s algorithm for solving the single-source shortest-path problem for weighted graphs without negative edge weights. I have a wrong output of my program. Here's the code: [CODE] //Graph.h class Graph { public: Graph(int r = 1, int c = 1); // constructor void setCost(int …

Hi everyone, thanks for reading this! I have a RichTextBox in my form which contains alot of text. the content of this richtextbox is going to be sent by email but first I need to convert it to HTML format.. Now I know it exists but I can't manage to …

Hello to all ! i am encoding a class about rational numbers, holding the numerator and a denominator and all operators like are overloaded for it..it works all so fine ecxept for one wierd point: my cast-to-double operator is called at the times it is not called at all..for example …

In the following code, could someone please explain these if statements? elif 5 <= unhappiness <= 10:, & elif 11 <= unhappiness <15:, they have two arguments, one on each side which is something I haven't seen before. Also, what the one to the far right for anyway? Also, this …

i want to know the whole concept of file

Hi all, I've a problem: my application must convert ms word documents (imported from another system) into rtf documents, in order to be manipulated with OOo APIs and [U]to be immune from mistakes[/U] (for coding incompatibility reasons). I ask you: how can I manipulate ms word documents directly from my …

Hail. I'm having trouble with this program...here is the discription... Description: Design and implement an application that creates a histogram that allows you to visually inspect the frequency distribution of a set of values. The program should read in an arbitrary number of integers that are in the range 1 …

i have a combo box in vb6.0 which i need to get a column of data from oracle database, how can i extract a perticular column of data to a combo box

Hi Would any one tell me how can I generate a random permutation of N numbers in c++? Is there any algorithm in STL for this purpose? Thanks in advance

I know how to use the file_pointer=fopen("location","type") to open and check if a file exists. But I'm not sure how I would use this command or a similar one to check if a folder exists? What command do I have to use to check if a folder exists in the …

Ok, so I need a little bit of help with a program i'm writing. Let me give you the details. The user is suppose to enter two sentences with all lower case letters and have the first letter of each sentence become capitalized. Here is the code so far:[CODE] // …

Hi I have a data logger that records different lenghts of data. I download it in my application and create graphs. I need to show a progressbar to indicate how long the download is going to take. I get data from the logger to indicate how long the data run …

Can you convert the object returned by jTable.getValueAt(Row,Col) to an integer?

I need to write: Starting weight of food (in lbs:ozs)=8:9 into a python 3.0, I'm very new to this and what I came up with was: Starting_weight_of_food_in_lbs{:}ozs=input("Enter Starting_weight_of_food_in_lbs{:}ozs") print("Starting_weight_of_food_in_lbs{:}ozs entered=", Starting_weight_of_food_in_lbs{:}ozs) and I belive i'm way off....any help would be great!

how to store image file into database using python

Hello I've got a project running at school where I've got to create Pacman, everything is going great. But I want to load an image to use as ghost, background or pacman. Currently it's a square which is pretty stupid. But how can I convert the image from jpg, gif …

Whenever I try to run my program it keeps giving me an overflow error and I dont know why. The problem is shown when i call this sub: [CODE]blueP.shootBall(blueS.x, blueS.y, blueP.ang, blueP.captured, ball.x, ball.y, ball.velx, ball.vely)[/CODE] this is the sub [CODE]Public Sub shootBall(ByVal x, ByVal y, ByVal ang, ByRef caputred, …

Hi, In my program, a text file is read in, and certain parts of it are written to a XML file. There are special characters(e.g. &) that need to be escaped, so I need to escape all of them. How can I manage to do this?

Hello, firstly I would like to thank you in advance for any assistance provided. I am new to software development and have designed several Client/Server applications over the last 12 months or so, I am currently working on a project that involves a user logging in to gain access to …

There were two other variation which I completed but I am confused with this one: Write a method for each triangle variation. Use nested for loops to draw the triangles. Variation 3: /** Precondition: width is an odd number >1*/ public void diamond (int width) { } if width = …