Software Development Forum

Two doubts: 1. Placing run() inside main() generates "illegal start of expression error"? So why can't run() be placed inside main()? 2.With the above code I am getting the output as A C D B. Why B comes last is because of join(). But what I'm unable to understand is …

General rules is that: 1) A private method cannot be overridden. 2) Subclass method should be a lower access modifier than a overridden superclass method. But the output of the program is "I am Son". Why? Is it because of the rule 2 the output comes? If that's the case …

Hey guys, I'm a starter so I had a doubt related to placement of a static variable. On line 5, for "static int d=5" compiler issues "illegal start of expression". But when I place it outside main() as Instance variable it works and prints "Hello 5". Why this thing? public …

#include<iostream> #include<fstream> #include<string.h> using namespace std; int main() { //system("clear"); cout<<"\npls input the file where you want to read the data from\n"; string loc; getline(cin,loc); ifstream g; g.open (loc.c_str(),ios::in); string data; g>>data; cout<<"\n\n\n\n"; cout<<"\nthe data read from the file is\n"; cout<<endl<<data; return 0; } > even if fiole being read …

Hi, for a school project (exam actually), we've written a ternary trie for text-completion. We fill it with about 400.000 lines of text (13 MB in total, as UTF-8). Now, java represents characters in UTF-16 i believe. So thats 26 MB, + another 26 for saving the complete strings in …

Good Afternoon, I'm having problems with my program that deals with fractions. The problems are with the functions multiply and divide that are not working correctly. So far I have this code. CPP FILE: #include <iostream> #include <cmath> #include "hw4_head.h" using namespace std; int main () { int a, b, …

I am trying to overlay a moving average over a OHLC chart but I get no results. Any ideas on what am I doing wrong ? private static OHLCDataset createPriceDataset(String filename) { //the following data is taken from http://finance.yahoo.com/ //for demo purposes... OHLCSeries s1 = new OHLCSeries(filename); try { BufferedReader …

I have a group of files (A.txt, AA.txt etc) in the form A.txt : A,45,56,78,98,11,23 A,98,90,33,76,30,40 AA.txt : AA,65,76,34,76,98,12 AA,12,76,33,76,33,89 How can I quickly remove the symbol column (A,AA) from all these files using Python? (I want to use python because the number of txt files is 3200) Thank you.

I am in course that uses Gaddis' Starting Out With Pyton 2nd Edition. There is a problem in the course that asks use to write a program that would capitalize sentences that a user inputs. I have come up with a reasonable solution, but I have two major problems. The …

Hi Everyone, Starting to write **3D images** using** JOGL **and I can't seem to find any **recent information** and help about **JOGL** and creation. I noticed that most of the terms have changed and it doesn't work. Any **recommendations** on what I could read to help update me and keep …

Hi everyone. I wrote the following code: if the number entered is even ie if n=6 , the column of # should be at the 3rd column (ie 6/2) if the number is odd ie if the number is 9, then the column of # should be at the 5th …

How can i open acces file using a command button in vb. What should b da reference? what should b da code? Same question for opening pdf file. help me plz.

Hello, Iv been trying to work through some issues on binary output recently. But im having problems understanding the conversion process in java when using two's complement. I dont understand why System.out.println(Integer.toBinaryString(-11700)); Prints out 11111111111111111101001001001100. Shoudlnt -11700 only be 15 bits long? When i calculate it by hand and invert …

Hello guys, I'm trying to make a list of students grade using array. My question is, how am I going to do this? **OUTPUT:** Lea 94 Morgan 85 Jenny 92 Harold 75 I've tried a bit to program, please do check my code. public class StudentScoreArray { public static void …

Hi, could some one look over my code I by myself dont get where the flaw is. It should paint 1 cube at a time but now it runs all the code through and paints all at once. package net.viped; import java.awt.Color; import java.awt.Graphics; import java.awt.event.KeyAdapter; import java.awt.event.KeyEvent; import javax.swing.JFrame; …

I think the following code should print 26 but it's printing 62 instead. public class gjh { public static void main(String[] args) { int x = 2; x += ++x * ++x * ++x; System.out.println(x); } } So how is this possible?

Hi everybody, I'm trying to do a simple login for a web site, and everything looks fine except one thing, when I enter a name and a password for a superuser I got "403 Forbidden" error. here is my login.html: <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> …

I have a Two Test classes that use variadic templates but I made the constructors explicit so that the compiler doesn't convert anything and leave everything as it was. One class was Array and the other was called 2DArray. When I intialize 2DArray, the compiler was converting its arguments to …

Hi all, I've browsed the net trying to find a paradigm to describe what I'm looking for but haven't been successful. So I'll try to explain it as succinctly as I can. Right now, for my PhD research, I've set out a few applications that take input files that have …

I'm trying to test my copy con and move con as well as their assignment operators. It NEVER gets invoked :S Copy con gets invoked just fine but the assignment operators are never called and neither is the move constructor. How can I test it to make sure it works …

I have created MFC ActiveX project in VS 2010 using C++. I have added just one function "Add" to the project by clicking the Add method option in the menu that pops when you right click _DProjectname under ProjectnameLib in solution explorer. SHORT CSampleProgramActivex01Ctrl::Add(SHORT a, SHORT b) { AFX_MANAGE_STATE(AfxGetStaticModuleState()); // …

Hi! when I try to run this code: struct Cand{ // 0 -> not a cand // 0.5 -> preCand // 1 -> cand float status; // Row position int PosX; // Col position int PosY; /* * and many other things * */ }; int rows = 1024; int …

I am writing a program that is suppose to read all the lines in a .ini file and then the program will configure the network connectivity. ex. ip = 128.123.156.46 then it would set the ip address to 128.123.156.46 i have tried this: while(getline(infile, TheBuffer)) { if(TheBuffer == "ip =") …

In my applcation I have a JText field for entering a phone number. Is it possible to make it only accept numerical characters? Or should i wite a method to alert the user if they enter any other characters into it? Thanks

hi i am programming for about 4 years and i want to learn how to make a operating system. for ex window, mac or unix. And i am think of storing it on a disk. I have no idea how to get started. can any one tell me the steps? …

Hi All, I would like my 'quit' button to appear in the bottom right hand corner of my menu screen, but it seems that every computer in the office has a different sized screen, different size ration (some are widescreen), and different resolution. When I deploy my program, the quit …

Hi, I'm trying to take two text files, compare them, then output the matches into a new text file. I've read the thread started by the1last, but that's outputting differences, not matches. I just started learning about python a couple days ago, so I don't know anything about what syntax …

I am trying to run an easy Android ndk app in cpp, but I get UnsatisfiedLink Error for the Generate() function. Any help would be appreciated. I am quite fluent in c++, but my java is a little bit rusty. I have been trying a lot of tips from the …

I initiate OpenFileDialog from a btn and once the correct file is selected at OpenFileDialog1_FileOK * ,I want to load Form2 to do some file checking routines. Private Sub OpenFileDialog1_FileOk(sender As System.Object, e As System.ComponentModel.CancelEventArgs) Handles OpenFileDialog1.FileOk dbfFileFolder = System.IO.Path.GetDirectoryName(OpenFileDialog1.FileName) dbfFileName = System.IO.Path.GetFileName(OpenFileDialog1.FileName) dbfFileNameShort = System.IO.Path.GetFileNameWithoutExtension(OpenFileDialog1.FileName) If dbfFileName = "GNDITEM.DBF" …

I have a TreeMap<String, Customer> (Customer is a class I have created). Customer objects hold a HashMap<String, Repair> (Repair is a class I created). I wrote a method to find a given Repair, this is it: public void processFindRef() { if(ref.length() == 6) // ref is the string we want …

I have this form connected with SQL server : http://img171.imageshack.us/img171/7423/692012101827pm.png is there any way that when I enter a new company and press save icon, the combobox will update automatically ? Thanks

Following code is for deleting elemnt from array but it shows NullPointerException at **if(names[k].equals(user))** ... how to remove it!!! public class del_array { public static void main(String s[]) { String names[ ] = new String [10]; names[0]="admin"; names[1]="b"; names[3]="m"; String user="b"; for(int k=0;k<names.length;k++) { if(names[k].equals(user)) { String item=names[k]; for(int j=k;j<names.length-1;j++) …

> "warning: 'class Debug' has pointer data members but does not override 'Debug(const Debug&)' or 'operator=(const Debug&)' [-Weffc++]" The only pointer member I see here is the HANDLE hTHread. Why should I override my constructors or add a move/copy to this class as the compiler suggests? class Debug { private: …

I am using VB.Net 2003 (version 1.1) and I am attempting to open some forms with: Dim myform As New FormX If myform.Visible = False Then myform.Show End If Problem is, no matter what, a New instance of the form opens. How do I check if an instance of myform …

Good day Gentl'men! I just need a little help for date manipulation.here is the criteria.. I have **two date picker, dtfrom.value & dt2.value, and a variable called "viewtype".. ** **if viewtype="monthly"**, I want to create a listview column base on fromdate.value & todate.value..Example, if **fromdate.value="12/24/2012" and to.value="06/31/2013"**, I want to …

First of all, just registered and this forum looks great! PROBLEM: My program which I wrote in Code::Blocks, has compiled fine and has worked fine, but when I run the outputted file called (BINDED.exe) it shows a very quick console window then closes, I think this is due to the …

Good Afternoon, How do you write a two nested do-while loops to display the pattern: * ** *** **** ***** ****** So far I have this code, but it just displays ****** int i=0; do{ cout<<'*'; i++; }while(i<5); cout<<endl;

My Ubuntu version is 12.04. I'm simply trying to include GL/glu.h in my program, but I get the error: `fatal error: GL/glu.h: No such file or directory` I include it like this: `#include <GL/glu.h>` I have libgl1-mesa-glx-dbg, libgl1-mesa-dev, mesa-common-dev all installed.

**alue** I have a Customer class and a Repair class I have a TreeMap(customerDetails) of type <String, Customer>. Each Customer object holds a HashMap(repairs) of type<String, Repair>, the String represents the ref number of the repair. The user of my system types in a ref number, the program searches to …

Hi, People... I have a question about reading xls files in python then parsing it to sqlDatabase. The thing is, that the xls file(pricelist) we as a company use are ordered and it's pretty easy to sort that out. The problem comes with xls files from other companies. (We are …

I'm really confused with this! I have 2 classes, Club and Membership. In Membership I have the method, getMonth(), and in Club I have joinedMonth() which takes the parameter, 'month' - so a user enters a month and then I want it to return the Membership's which joined in that …

Good day to everyone.. First Here is my code so far.. import java.io.*; public class Inventory { public static void main (String[]args)throws IOException{ BufferedReader bv = new BufferedReader (new InputStreamReader(System.in)); String x, z; boolean y = true; int a, b, c, d = 0; do { System.out.println("--------------------------------------------------------------"); System.out.println(" M I …

Hi, I have some images which I update like below: count++; if(count >= sizeOfArray) { count = 0; } for(u32 i=0; i<sizeOfArray; i++) { s_image[i].image->setVisible(false); s_image[i].reverse->setVisible(false); } I want to know, how do I reverse it. I mean, it is increasing the count and I want to decrease it. The …

If a heap is like a binary search tree shouldn't it search in O(log n)?

I've been working through an excersise in a introduction to Java book by Deitel and I have a solution to a problem. The program will compile, but I get a message that says, "Exception in thread "main" java.lang.IllegalArgumentException: adding container's parent to itself" Can Someone please help me? Here is …

currently I'm rewriting old euler solutions into classes so i can store them in a library. I wrote a program that digitizes a number so it can check to see if it a pallindrome, The base class digitize dynamically allocates memory for the size of a number and stores each …

How can I create a Modifiable Const vector but make it unable to be resized? Either that OR I want to return a pointer from a function but not allow the user to delete it. This is my example so far: class MemberRawArrayVector { private: vector<unsigned char> MemberRawArray; public: MemberRawArrayVector(int …

Hi, I have made a code where I write a recipe to a file and then I can read from the file and it is output in a listbox. I need to allow the user to change the amount of people served and then the quantities change to suit the …

hey guys i have done my codes and its working properly the only thing that's bothering me is that' when i input 52 and 'a' as my name, it wont ouput the right answer (it should be 'a' also) i hope you guys can help me thanks! public static void …

This is driving me crazy. I downloaded netbeans and love it but for the last 5-6 hours i have been trying to figure out why my java programs is not showing images. When i open it with jGrasp the images and everything loads perfect. With netbeans it will not show …