708 Topics
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| | I was going to check if a temp table exists and delete the it,since "the temptable already exists" arises if you want to perform another operation. Here's the code i used five statements but it says syntax error in drop table or drop index statement. Any help would be appreciated. … |
 | So I'm teaching myself Java. I'm creating a text based game. I have an if statement that i want to check users input so its like this: if(sc.next() = "help"){ System.out.println("info"); } else if(sc.next() = "item"){ System.out.println("info"); } Etc. But it wont work. What would be the proper way to …  |
| | Hello, I'm trying to calculate the maximum and minimum distance between 10 points. My method to calculate the maximum distance is working fine however my method to calculate the minimum is returning 0.0 and I'm not sure why. Could someone please take a look at my code and tell me … |
| | i'm not sure if a pointer can do the job of an iterator, or otherwise, or they are different things?  |
| | Hi guys I need to make a diamond like this for my lecturer,using nested for statements. I am having troubles. Can you guys give me any tips? ty. |
 | I'm writing a program where the settings of a spreadsheet-like field of textboxes are changed using two for loops, and I can't for the life of me figure out why it's not working.I have tried declaring the txt variable and name variable in different orders using different methods, but nothing … |
 | **Part One**: Learning the Basic Patterns **Disclaimer**: please pardon my spellogrammatico errors. I am not really a rough draft person. I type and write codes the split seconds as they crossed my mind, otherwise I will get extremely lazy and then will eventually hibernate like a tardigrade. I hope I … |
| | Hello everybody, I was asked by an interviewer the following question. but I was not able to answer. Please get back to me if you know the answer. thank you in advance. Que: What is the exact difference between the "for" loop and "while" loop in C language ?  |
| | I wanted to display the blue mean value in the text box, but it is giving me an error blue.set(B_mean1) AttributeError: 'numpy.ndarray' object has no attribute 'set' And this is my code: from Tkinter import Tk, Frame, BOTH from Tkinter import * import cv2 from collections import * from CBIR … |
| | my problem is how to use if else statement with the use of character type string (char str[40]) for exemple char str[30]; cin>>str; or gets(str) or getline(str,30) if(str=="hello") cout<<"world"; i search this everywhere but every answer could not satisfied me.  |
 | **This is intented for learning purposes, feel free to study the code** Create a drawing that looks like this (pyramid) The number should be incremented with the modulus. |
| | Hello, Below is a simple gun simulator for the console, but everytime I hit spacebar, I have to hit it twice before the next line will pop up in the console. This started happening after I inserted the last 'if' statement in order to reload the gun. Does anyone know … |
| | I am having trouble finding out if I did the header correctly #include <iostream> #ifndef TREE #define TREE // Node class class Node { int key; Node* left; Node* right; public: Node() { key=-1; left = NULL; right = NULL; }; void setKey(int aKey) { key = aKey; }; void …  |
| | So I am working on a simple assignment for my C class that reads a formatted file and prints information about the file based on the format. The file format looks like this: #Domain Alexa Rank Site Name #------------ ----- ------- --------- amazon.com 13 1177136 Amazon.com google.com 1 4533883 Google … |
| | Hi..all I'm newbie in VB.net Please Help me.. How to search data by textbox and datetimepicker access 2003 database in VB.net Exp : I want to search for data based on the Part name and two datetimepicker I try with code like this but the results are not in line … |
 | I need to add a nested table to my php page so that when I put it in my browser, just a table will appear with 2 columns and 3 rows. In the top left column I need the word "WIDTH", and right below that it will say "HEIGHT". The … |
 | I have a python code that reads several csv files and writes teh data to a single file but every time it loops back around to the next file it prints the headers again. Is there a way to stop this I can post my code if it is nessisary. |
 | hello daniweb friends. sorry for my title i didn't find how tell shortly or exact my problem. so i have a div in header which in i have image as site logo and near i have form "search form" i want to make near, face to face. but what i … |
| | I was trying to find an answer for my issue over the net, but it was hard to find any relevant information. I'm in the middle of my school project and I got stuck in a dead point! I have a form which looks like this: http://i60.tinypic.com/24zjfpl.jpg I don't know … |
| | I've asked this before and I'm really racking my brains here. To create an admin controller or simply have an if statement in the view. **view** if session == admin show admin delete post This would minimize my code so much. I really can't see the wrongness in this. Although …  |
| | The following code is producing this error `Microsoft VBScript compilation error 800a03f6 Expected End ` followed by `/stock/availability-quick/availability2.asp, line 130` I think it is a if else error. I have looked over the code and i don't see the error and would benefit from an expert pair of eyes to … |
| | Are exceptions standardized in C++? I mean if the rules of exception handling might be changed in the future. i.e: int Funct1(int) throw(); // does it throw an exception?  |
 | Hey! So I am having trouble with this [problem](projecteuler.net/problem=18)! Basically you have to find the path that gives the largest sum down this tree: 75 95 64 17 47 82 18 35 87 10 20 04 82 47 65 19 01 23 75 03 34 88 02 77 73 07 … |
 | Write a program to get 3 numbers from user for integer variable a, b,and c. if a is not zero, find out whether it is the common divisor of b and c. |
| | I am getting an error on this code. Is it to do with whats in the while loop? How do i get it working? Basically i want to be able to take in letter or number variables, and each would output something, and if they type exit it breaks out … |
 | i keep getting a error on the next page saying that hotel1 is an undefined index: page 1: foreach($child->children() as $gchild) { //echo ">> " . $gchild->getName() . ": " . $gchild . "<br>"; echo "<tr><td><input type='radio' name='my' value='my" . $gchild->name . "'></td>"; echo "<td><input type='checkbox' name='hotel". $r."' value='" . … |
| | So I actually posted this in the C# section, but despite peoples best efforts, all all the help there, the problem is still not solved. Background: Im making a game in xna/c# (Who isnt these days). For collision detection, I though I would use rectangles and lists. My thought process … |
| | So everything works right now, but I need that final section (will be turned into a function later) to display the number of A's, B's, C's, D's, and F's. It seems like it should be pretty simple, but nothing is working for me. Thanks! #include <iostream> using std::cout; using std::cin; …  |
| | I need to find a digit at a specific postion in a number. Example number 652796, user inputs a 4, "2" is displayed. I have the basis for it, but most of the time, the output is incorrect. Not sure what's wrong. #include <iostream> #include <cmath> using std::cout; using std::cin; …  |
| | I am trying to combine cells depending on the contents of other cells. If Column A has an "X", I want to combine all cells below it, values seperated with a space, until the next line where an "X" appears. There is also data in Column C, which I don't … |
| | Hi Champs, Im using VBA for Excel. and Im trying to use the code below to move through records and increment their values by one since they meet a certain criteria Sub promotion() Dim x As Range Dim y As Integer Sheet2.Range("c2").Activate Do While y < 1002 y = ActiveCell.Row …  |
| | Hello, as it can be inferred from profile, I am new. I have read the community guidelines and I have done prior research. I am a very weak coder(through my own fault). However, I like to believe I firm conceptual understanding. **So What is my problem?** I have an assignement … |
| | For the if discriminant < 0 statement, I need to not only display the error message, but I must display the complex roots in the correct format for complex numbers. How should I go about that? #include <iostream> #include <cmath> using std::cout; using std::cin; int main() { int a = … |
| | Hi all, I have to update some classic ASP code and I need to add an if statment to compare if a uppercase value is == "N/A" and to compare value with request("productLink") line 8 and if it is it should by pass validation on line 16. Any further information …  |
| | This program is supposed to run through the menus to eventually display the area or volume of a shape depending on the user's menu choices and input. However, it won't run the final menu and I'm not sure why. There aren't any problems when it goes through the debugger, it …  |
 | I want to make and If statement which will work when a double "credits" is between 1 and 9. But I'm not sure how to. Will If (1 <= credits => 9) Then Work?  |
| | Greetings all. In my MVC app I am trying to iterate through 2 collections, which are similar to a jagged array (a collection of modules, each containing a collection of components). Module and Component each have an Index attribute where the sort order is specified through an admin tool. The … |
 | can someone help me, I need a program like this but it **must not use for loop**. or can someone revise it using **do loop**? I need it badly #here is the code: { int n, i, j; do{ printf("Enter a positive int n: "); scanf("%d",&n); } while (n < …  |
| | Someone help me creating a this program. Well, I need a program that makes a triangle out of asterisk but it doesnt use "for" loop it only requires "do-while" loop. Actually I tried making one but it doesn't look like a triangle instead it jsut display a line of asterisk. … |
| | Hi, I've got a class in PHP with an array of objects in it. I need to loop through these objects and call 2 methods on them but I'm not sure of the best approach. When dealing with arrays, if you use foreach, you can't seem to update the actual … |
| | Following up on a discussion on [this thread](http://www.daniweb.com/software-development/cpp/threads/470519/looping-using-recursion/), I did some tests on the performance of recursion vs. iteration, and some interesting things happened, so I thought I would share the results. I'm gonna structure this a bit like a lab-report, because that's really the best way to put it. …  |
 | I would like to convert Control objects wich are in my array to progress bar Objects if possible. I know that the reverse conversion can be done explicitly without a problem but this one seems tricky. If impossible then please suggest something else instead. TNX |
| | Give that array I want to use the random string attached to the tab-title and tab content keys which are rEXMp and 3T2IV respectively , I want to use those to split the array into two arrays and getting rid of these characters in the new array and also add … |
| | I have this array Array ( [0] => Array ( [post_category] => cat-1 ) [1] => Array ( [posts_count] => 33 ) [2] => Array ( [cells_num] => 1 ) [3] => Array ( [grid_num] => 0 ) [4] => Array ( [post_category] => cat-2 ) [5] => Array ( … |
 | i am trying to get all the result from my databse table but this query is not working. <?php try { $pdo = new PDO('mysql:host=localhost;dbname=articles', 'Avik', ''); } catch (PDOException $e) { $output = 'Unable to connect to the database server.'; echo $output; exit(); } try { $sql = 'SELECT … |
| | I am a newbie to python so exude the not so well constructed code.. I have two text files. The first one (WordFile1.txt) is " John Mary Joe alice William ….." The second (SearchText.txt) is "JOHN EGGS,24,BEEF,36,BACON,56,HAM,66 ALICE TOMATOES,16,HAM,35,BEANS,35" ……." If my response number is 2 I will get BEEF … |
 | Hello, This if statement is always returning true and I cannot see why. Could you guys tell me why? menu = input("Choose what you would like to do:\n\n1. Work out how far you will travel with a set time and speed\n2. Work out the speed you will need to travel …  |
 | class Timerange{ public: Start_time start; End_time end; Timerange(string initstring){ //initstring xx:xx X, x:x //X->weekday string current=""; unsigned short mode=0; string timeA; string weekday; string timeB; for(unsigned short i = 0; i<initstring.length(); i++) { char c = initstring[i]; if (c==' '){ if (mode==0) timeA = current; else if (mode==1) weekday = …  |
| | I know I am probably over thinking this but I cannot seem to figure this out. I am trying to check if the value is null and if not to continue. /** * */ public Item getItem(String theItem) { Iterator iter = myItems.iterator(); while(iter.hasNext()) { Item anItem = (Item) iter.next(); …  |
| | // Expect to print values of arr[0] to arr[4] #include <iostream> #include <vector> using namespace std; int main() { vector<int *> ptrList; int arr[] = { 0, 10, 20, 30, 40 }; int * ptrArr = arr; for( int i=0; i< 5; i++ ) { ptrList.push_back( ptrArr+i ); } vector<int …  |
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