Software Development Forum

1. A company wants to transmit data over the telephone. All of the data are transmitted as four-digit integers. The company has asked you to write a program that encrypts the data so that it can be transmitted more securely. Your program should read a four-digit integer and encrypt it …

i was reading a book and came across this line "C++ matches a pointer of any other type with type void * and prints a numeric representation of the address. If you want the address of the string, you have to type cast it to another type," please any one …

Hi Friends, Please share your's experience about best supporting programming language for BigData & Hadoop. I'm also doing some research about this topic plz contribute your idea & experience for this topic. Regards, Rupesh

`Console.WriteLine("Students {0}", variable)` This i understand but what does it mean when you put two numbers within the bracket example: `Console.WriteLine("Students {0,2}: {1,3}", student + 1, grades [student])` What do the 2 and 3 represent. I know the 0 and 1 correspond to variables, but I'm not clear on the …

I am writing a class that uses different policies stored in classes I want to declare this class by simply selecting the policies by writing `my_great_class<policy45, policy22, policy12>` (There can be a varying number of policies) which would translate automatically into: struct empty_class{}; struct policy12: empty_class{ // code... }; struct …

Hi! This is just an example code: #include<iostream> using namespace std; int& example() { int a=5; return &a; } int main() { cout << example(); } But I'm getting this error: Error: invalid initialization of non-const reference of type 'int&' from an rvalue of type 'int\*'

I am writing a program to input data from a file, format it and then output to another file. For some reason when i make the file I get this error: ----jGRASP exec: make g++ -ggdb -c Billionaire.cpp iostream:39:0, from Billionaire.cpp:7: c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\ostream: In constructor 'Billionaire::Billionaire()': ostream:384:7: error: 'std::basic_ostream<_CharT, _Traits>::basic_ostream() [with …

Do you know if I can change of line in a list of lists? tareas = [] > otraTarea = [tarea,year,month,day, hour, minute, second, microsecond,str(cuando),cuando] `+'\n'+ []`(this is what i have tried) #I have tried to concatenate two lists, but the program returns a message, in which it's explained that …

Hi. Can someone explain why this isn't working? #include <iostream> #include <list> #include <string> #include <iomanip> using namespace std; /** * Global Variables */ int printer; int disk; int cd; int num; int pmem, plen; int dmem, dlen; int cmem, clen; class PCB { public: PCB() : pid( 0 ), …

Hi. I'm trying to access some data in a List using an Iterator, but I'm getting an error message: #include <iostream> #include <list> #include <string> #include <iomanip> using namespace std; /** * Global Variables */ int printer; int disk; int cd; int num; string k; int pmem, plen; int dmem, …

this code was error.please help me fix it include <iostream> include <conio.h> include <algorithm> using namespace std; int a[]={1,5,7,4,9,8}; BST*binary_search_tree; struct BST{ int value; BST* left; BST* right; }; int search_bst(BST* node,int key){ if(node==NULL) return -1; if(key<node->value) return search_bst(node->left,key); if(key>node->value) return search_bst(node->right,key); else return node->value; } void insert_bst(BST* &treeNode,BST* newNode){ …

Hi. Can someone tell me why the following code is giving me an error message? Thank you. #include <iostream> #include <list> #include <string> #include <iomanip> using namespace std; /** * Global Variables */ int printer; int disk; int cd; int num; string k; int pmem, plen; int dmem, dlen; int …

Hello I have to do a sorted list code according to some instructions. a friend and I worked on this, and we pretty much ended up with the same code, his worked, but mine isnt, even though its exactly same! I have been trying for hours figuring how to make …

I have a textbox called ssd. I want it to compile the C# code in it to "Prgoram.exe" at the same location. I tried this: CSharpCodeProvider codeProvider = new CSharpCodeProvider(); ICodeCompiler icc = codeProvider.CreateCompiler(); System.CodeDom.Compiler.CompilerParameters parameters = new CompilerParameters(); parameters.GenerateExecutable = true; parameters.CompilerOptions = "/target:winexe"; parameters.OutputAssembly = "Program.exe"; parameters.GenerateInMemory = …

Hey friends, i have just started with my java classes but im finding it quick tricky so is there any books availabe for dummies

I a form with textbox as age. A database with 2 tables as- Accessonbook and Report. So when enter into value in Age textbox it should copy in age column in both tables. Please tell me the code.

I am having problem getting the final result here, it keeps on looping. #include<stdio.h> #include<string.h> #include<conio.h> #include<math.h> #include<stdlib.h> #include<ctype.h> int main() { int i, t, k, max, min, sumof; printf("Enter number of integer elements in array: "); scanf("%d",&t); int a[t]; printf("Enter list of array: \n"); for ( i = 0; …

I got this code from the internet. import random #create a sequence of words to choose from name = ("stephen","bob", "robert","craig") # pick one word randomly from the sequence word = random.choice(name) #create a variabe to use later to see if the guess is correct correct = word # create …

here are my codes: #ifndef STUDENT_H #define STUDENT_H class student { public: void enterDetails(); void enterModule(); void displayDetails(); private: char name[100]; char studID[100]; char address[100]; char module[100]; }; #endif i want to add a 2d array "M[row][col]" in my class but i don't know how to do it anyone help?

Hello there, I am currently working on a indepedendent project and I am realtively new to Python. Please note that this question revolves around Python version 3. But if you have a answer in Python 2 just write it down and tell me it is in Python 2 thanks. What …

Hi everyone My code is still a bit messy as I;m pressed for time. I have to write a simple game you play against the computer. I have my StartGUI class which instantiates the GUI and then I have a Game of Life class, which does not have a JFrame, …

I'm working on what I thought was a straightforward program to accept user inputs and store them in an ArrayList. I created a separate class containing an object and a constructor (first name, last name, and an integer). In the main method, I prompt the user for input within a …

Hi All, I am learning Multithreading in Java and came across this code using SwingWorker for GUI multithreading. Here is the modified code done by me. import java.awt.GridBagConstraints; import java.awt.GridBagLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.util.List; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.SwingWorker; public class MainFrame extends JFrame { …

I need the code for this Pseudocode AccountBalance Begin Get starting balance Get withdrawal amount If withdrawal amount > starting balance Then Display “Insufficient funds” Else final balance – starting balance – withdrawal amount Display “saving account balance is low End If End

I am label which display the current time ( label8.Text = DateTime.Now.ToString("HH:mm:ss"); ) but here i want on a button click the timer would alert on two minute (i.e time out)..

So, I am trying to test my if else with two Character.toUpperCase answers and I keep getting this error: 1 error found Error: bad operand types for binary operator '^' first type: char second type: boolean I tried && and & and it won't work. If I don't use anything …

I was following along to the following tutorial - [Derek Banas Java tutorial 18 - Threads pt2](http://www.youtube.com/watch?v=G2Xd5avyk_0) and as I decided to go over his tutorial series by following along in notepad++ and compiling with the command line, so that I can experiment and test things I'm unsure about, I …

I have searched everywhere for Borland Delphi 7 but I cant find it anywhere. I used it a while ago when I got it as part of my programmer courses but I lost all the data on my harddrive. I have looked on Borlands main website but I was unable …

Friends , I have a database in sql server named "Deposit" with a table "Receipts" .I want to display the data in a list box.My code is given below Imports System.Data.SqlClient Public Class Form1 Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click Dim cnn As New SqlConnection("Data Source …

Perhaps mt eyes are missing something simple, but I cannot understand what is going on. The following code produces intellisense and compile error "error C2373: 'GetHwnd' : redefinition; different type modifiers" I have many functions in same manner, but this will not play ball. extern "C" HWND __stdcall GetHwnd(wchar_t *); …

Below code is working fine with small problem. My problem here is, how can i get the BegValue working in a proper order. please it is only the begvalue that is giving me a headache. Please some one help me. !!! Thanks in advance. Public Class Form1 Private Sub Button1_Click(ByVal …

How to save the created txt file to a specified path? For example to C:\\ Drive. When the code creates a file it saves to the workspace folder of the project. Do I have to set the directory to C:\\? I tried using `SetCurrentDirectoryA` function but does not change to …

Hello good people I am working on a caeser cipher program for class. However, I ran into a problem with my outputs. Up to a certain point for example: two('y', 'z') Would give a '\x92' output instead of a 'x' output. Currently this is my code so far: def chartonum(ch): …

Hi, I am new to wxpython and trying to develop a small GUI interface (shown below). User selects a python script from "Browse run script" and when he/she hits the button "Execute RunScript", the script should execute via aardvark i2c interface. But I am not sure why it's not getting …

Hello, I am trying to write this program in Delphi that calculates the amount of change required to make a certain amount. The user enter a number between 1 and 200. The program then calculates the amount of 100, 50, 20, 10, 5, 2, 1 bils required. But there is …

Private WithEvents tim As New System.Timers.Timer Public Delegate Sub doSub() Private thingToDo As doSub Public Sub TimeOut(ByVal d As doSub, ByVal milliseconds As Integer) thingToDo = d tim.AutoReset = False tim.Interval = milliseconds tim.Start() End Sub Private Sub tim_Elapsed(ByVal sender As Object, ByVal e As System.Timers.ElapsedEventArgs) Handles tim.Elapsed Invoke(thingToDo) End …

vector <int> a; //first vector vector <int> b; //second vector vector <int>::iterator i; //iterator for first vector vector <int>::iterator i1; //iterator for second vector //reading of first vector int temp; while(cin>>temp) { a.push_back(temp); } i=a.begin(); while(i!=a.end()) { cout<<*i<<" "; i++; } //end of reading first vector //reading of second vector …

for(i=a.begin();i!=a.end();i++) { cin>>*i; } for(i=a.begin();i!=a.end();i++) { cout<<*i; } above code works fine but when i use while loop to display vector , program crash. while(i!=a.end();) { cout<<*i; i++; }

import javax.swing.JOptionPane; public class Hotel626 extends javax.swing.JFrame { public Hotel626() { initComponents(); } @SuppressWarnings("unchecked") // <editor-fold defaultstate="collapsed" desc="Generated Code"> private void initComponents() { jLabel2 = new javax.swing.JLabel(); jButton1 = new javax.swing.JButton(); jButton2 = new javax.swing.JButton(); jProgressBar1 = new javax.swing.JProgressBar(); setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE); setCursor(new java.awt.Cursor(java.awt.Cursor.DEFAULT_CURSOR)); setResizable(false); jLabel2.setIcon(new javax.swing.ImageIcon(getClass().getResource("/Pic/Entrace.jpg"))); // NOI18N jButton1.setBackground(new java.awt.Color(0, 0, …

ATM -Deposit -withdraw(5 times maximum per day) -maintaning balance 200 -maximum withrdaw 20,000 -Default Amount 50,000 help me :(

Hi guys I need your help on selecting data from 4 different worksheet. Here's my code Dim MyConnection As New OleDbConnection("provider=Microsoft.ACE.OLEDB.12.0; Data Source='" & path & "'; Extended Properties=Excel 12.0;") Dim cmd As OleDbCommand = New OleDbCommand("Select [MAM$].[Seller Name], [MAM$].[Final Computation], [MAM$].Designantion From [MAM$] Left Join [DSS$] on [MAM$].[Seller Name] …

I'm new here, and haven't posted anywhere for any help since I've been all about learning for myself. However, I've gotten to the point where I don't want to fail this class so I'm seeking as much help as I can! I don't want it done for me, just a …

I'm trying to pull the total physical memory on a machine and have it show just like it would inside My Computer Properties. I know I can use My.Computer.Info.TotalPhysicalMemory which will return it in bytes. This is where I'm getting stuck. I want to be able to divide it and …

Hello, I feel like this is probably something silly, but for some reason if I declare a variable at a certain point in my code, then never use it... it crashes. This is literally what happens: //... code here int isBuf=0;//one of my variables int zeroAddr=0;//<-- another variable I want, …

Hello Experts Here is my connection string [CODE] string con = "Data source =YS-8462BA359936;Initial Catalog = Schooldata;Integrated Security = True";[/CODE] and my store procedure is [CODE] SqlConnection objCon = new SqlConnection(con); objCon.Open(); SqlCommand cmd = new SqlCommand("Studentinsertadmission", objCon); cmd.Parameters.Add(new SqlParameter("@Studentid",Convert.ToInt32( studentid.Text))); cmd.Parameters.Add(new SqlParameter("@StudentName", firstname.Text)); cmd.Parameters.Add(new SqlParameter("@Image", image.image )); cmd.CommandType = …

I took the liberty of posting the assignment and the work I've done. I can't figure this one out, can anyone help me And I did put an attempt at this, almost 4 hours now and I'm burnt out. If anyone can help me I would soooo love you. "Your …

Just wanted other opinions on my code and a way to figure out whether or not each number placed into the 2D array is unique. My mind is blanking out a bit, I placed something in the method before but erased it. Debating on whether the parameters should simply be …

it's a beginner's problem. I am trying to calculate sum of the first 15 factorials. I know int isn't large enough for the sum, so I used unsigned long long but it still didn't work. why?? Thanks for helping! #include <iostream> #include <cmath> #include <iomanip> #include <cstring> using namespace std; …

i use a string str1= { 0xFEFE 0x0111 0x00 }, { 0xFEFE 0x0112 0x01 }, { 0xFEFE 0x0113 0x01 },{ 0xFEFE 0x0114 0x00 } need to find and seperate the substrings that end with 0x00 in one list and the substrings that end with 0x01 in another list. could anyone …

Hello, Where can I download Python 3.4.0 for Linux ? On the official website of Python I can find releases only for Windows and Mac OS. Thanks for your help.