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I have written a code to generate bar codes and saved them to a pdf file . The code executes successfylly but the PDF file does not open saying giving an error whome picture I am uploading. Please see my code and Picture with the error. ![barcodeError.PNG](/attachments/large/4/466b7c7d36a50fd6f88d0a7f157907c8.PNG) public void createPDF(String pdfFileName,String myString) throws FileNotFoundException{ Document doc = new Document() ; PdfWriter docwriter = null; try{ docwriter = PdfWriter.getInstance(doc, new FileOutputStream("C:\\Users\\hp430\\Desktop\\barcodes\\"+pdfFileName)); doc.addAuthor("Saboor Siddique"); doc.addCreationDate(); doc.addProducer(); doc.addCreator("SunSoftTechnologies"); doc.addTitle("Barcode Test"); doc.setPageSize(PageSize.LETTER); doc.open(); PdfContentByte cb= docwriter.getDirectContent(); Barcode128 code128 = new Barcode128(); code128.setCode(myString.trim()); code128.setCodeType(Barcode128.CODE128); code128.setBarHeight(5f); code128.setX(0.1f); Image code128Image = code128.createImageWithBarcode(cb, null, null); code128Image.setAbsolutePosition(10, 700); code128Image.scalePercent(125); …

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hi there i have some python coding which i need to convert to java can ne1 help me please email me back if you can help then i will show you the coding much appriciated

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Python-wxPython Tutorial This tutorial will take you through the basics of wxPython. ##Introduction: Let's face it. I am a dinosaur. I got my computer science degree in the mid 70s. And it won't be long before **I** am in **my** mid 70s. So why am I trying to learn Python? Mostly because learning new things keeps my brain active. And besides, nobody on Daniweb seems to be asking questions about vb.Net anymore. So I thought I'd give it a try. After a few weeks of puttering I managed to learn enough Python to rewrite all of my vbscripts (stop laughing, …

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Hi. I just installed Code Blocks. I want to just get started with programming. It seems that I have to configure Code Blocks therefore, setting up a compiler. How should this be done? Help Leon

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Hi. I want to detect a face and draw line exactly around the face to crop it. I searched a lot and used the EmguCV face detector. but now my code just draw a "rectangle" around the face and if I crop it, I will have a rectangle with a face inside it and it's not useful for me. this is the core of my simple code: CascadeClassifier _cascadeClassifier = new CascadeClassifier(Application.StartupPath + "/haarcascade_frontalface_alt_tree.xml"); using (var firstImage = Image.FromStream(saveImageStream)) { var bgrImage = new Image(new Bitmap(firstImage)); Image grayFrame = bgrImage.Convert(); var faces = _cascadeClassifier.DetectMultiScale(grayFrame, 1.01, 1, Size.Empty); foreach (var face …

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How can I show a div when menu item is clicked in angular? The Div show fine when I click list item, but dsn't disappear when I navigate to other menu items. <li><a class="nav-link slots" (click)="showme = true" >Slots</a> <div ng-hide="showme"> <div class="ribbon" *ngIf="game.categories[0]"> <span>TOP</span> </div> <div class="ribbon" *ngIf="game.categories[2]"><span>NEW</span></div> </div> TS file: showme : boolean = false;

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Hi all, here is a small program I have worked on over these last two days, I have submitted it in the hopes of some constructive criticism and suggestions (please be kind, this is one of my earlier C projects lol). This is a small console application that simulates a contact management database. The data that a user inputs is saved to an external dat file (contactdatabase.dat) which is created the first time a user saves and exits. This project also employs the use of Malloc(), which is used to allocate memory on the fly (at runtime) for dynamic data …

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Hi all, I'm having some issues with the Scanner not waiting for input from the keyboard. The first method processChoice takes the userChoice and the idea is that in the switch statement there is a call to a method getUserInputForProcessing that takes the action and there scanner takes an input but it's not passing the control to the keyboard, it goes directly to the Exception because nextLine is empty, not entirely sure why. Is that because it's inside a switch statement? public void processChoice(int userChoice, BookManager bookManager) { switch(userChoice) { case 0: System.out.println("Goodbye."); System.exit(0); break; case 1: System.out.println("You chose READ"); …

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Tyl is a programming language that is intended for curious people who are interested in software development, as well as for intermediate and experienced developers who want to try a different programming language. Some of Tyl features: - Clean code - Symbolized keywords - One-line statements - System modules & functions - Cascaded variables declaration - Automatic type inference Tyl Software includes the following modules: - Tyl Symbolizer - Tyl Parser - Tyl Statement Generator - Tyl Launcher - Tyl Compiler - Web Files Generator & Automation Details can be found at: Tyl Official Website: https://tyl-lang.dev Twitter: https://twitter.com/TylLang (@TylLang) Facebook: …

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What are all num referring to ? class Sample { int num; void method() { num = 1; int num = num = 2; num = 3; } }

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How can I minify my code in here, I am giving each 23 total imageview a eventhandler. code works, but I like to make the code shorter. I tried to use for loops to shorten the code. here is a example what I tried to do: for (int i = 0 ; i < imgArrayList.size() ; i++) { imgArrayList.get(i).setOnMouseClicked(new EventHandler<MouseEvent>() { @Override public void handle(MouseEvent event) { selectedTile = i; } }); } but it can't because, the "i" inside the handle method is final. I can't pass the "i" inside the handle method. my goal is, that a specific …

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Hi, I have an idea of building an API for **Machine-to-machine payments.** The API will enable to assign wallets to connected devices, record available amounts of something valuable, as well as all incoming and outgoing movements of value. Would love to hear back from developers who are seeking to address the issue of M2M payments. * Which challenges around M2M payments are you trying to solve? * Which technology do you use? Appreciate your feedback a lot!

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Looking to create an asset for the Unity Asset store in C#. I don't want to give away the source code, yet I want users to be able to purchase + download my work and use it in their projects. I'm not sure what this is called or how to do it. Any ideas? Much appreciated!

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Sorry for the lousy title, "InterProcess Communication" was too long Basically, I'm looking to use the native `_winapi` and `msvcrt` modules to launch an integrated python interpreter and communicate with it over pipes I can't find anything on Google or DDG, and I've been searching for days, but nobody uses these modules for some reason... I already have the foundation with a 1-way Parent->Child pipe that works, but it's giving me a few issues: 1: I can't seem to get a 2nd Child->Parent pipe to run without the program hanging 2: the output of the subprocess only prints after the …

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I am working on a problem for which i have already developed a solution, but i am new to OPP prgramming and started learning recently. Would request OPP Gurus to provide suggestions for the better designs, keeping scalability, extendability of (course readability) in mind. Also,I would like to extend the the current program for mutiple random players and winner is decided based on max number of votes. But there are rules: 1)Currently i have 6 players, out of which any number of players might contest(taken from std::input or cmd args) 2)Contestants are not aware of other contestants. 3)Each contestant has …

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Hi. I was wondering if anyone could help me with checking for a valid move in Othello. I was thinking about hard=coding everything but that takes too long. this is what i have so far: 1. Check which direction is valid (adjacent piece is different from piece being placed) 2. Go in that direction(s) and if: 1. hit the end, or hit a empty space return false 2. hit another piece, keep going 3. hit my own piece, stop

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Help me , Search data with dataGuidViewer and print that searching result (vb.Net). I am try verious Code thous are found youtube, but it not work...... Please Help me VB.Net (2010, 2012,2013,)

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hello, i'm newbie here and also in programming world. so I would to request help from pros here. my question is, how to print out number entered in random in ascending order WITHOUT USING ARRAY AND FUNCTION? let say the user key in 4, 56, 31, 90, 11 and the output would be 4, 11, 31, 56, 90. hope anyone would help me. thank you.

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MyMainWindow::createUI() { label = new QLabel("foo"); button = new QPushButton("Browse"); connect(button, SIGNAL(clicked()), SLOT(browse())); layout = new QHorizontalLayout(); layout->addWidget(label); layout->addWidget(button); setLayout(layout); } void MyMainWindow::browse() { QString directory = QFileDialog::getExistingDirectory(this, tr("Find Files"), QDir::currentPath()); if (!directory.isEmpty()) { if (directoryComboBox->findText(directory) == -1) directoryComboBox->addItem(directory); directoryComboBox->setCurrentIndex(directoryComboBox->findText(directory)); } } MyMainWindow::createUI() { label = new QLabel("foo"); button = new QPushButton("Browse"); connect(button, SIGNAL(clicked()), SLOT(browse())); layout = new QHorizontalLayout(); layout->addWidget(label); layout->addWidget(button); setLayout(layout); } void MyMainWindow::browse() { QString directory = QFileDialog::getExistingDirectory(this, tr("Find Files"), QDir::currentPath()); if (!directory.isEmpty()) { if (directoryComboBox->findText(directory) == -1) directoryComboBox->addItem(directory); directoryComboBox->setCurrentIndex(directoryComboBox->findText(directory)); } }

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**Task** Your task is to write a program that will draw graphs and output them as coloured image in the .ppm file format and display them using a suitable external image viewer (IrfanView). The program will use code generated sine waves, and harmonics of these, to calculate and display the harmonic components of a square wave. All sine wave harmonic should be displayed, each in a different colour – and the square wave that results from summing all the sine waves should also be displayed. The resultant waveforms should be output as a single file in the .ppm format. Initially, …

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Well I guess it is my turn to ask a question, since most of the time I spend answering questions on DaniWeb. The Problem: DataViewGrid throws a "System.ArgumentException parameter is not valid..." when the dataset contains an SQL 2005 TimeStamp type column. The error occurs in System.Drawing.FromStream... da da da It is because a TimeStamp is a Byte[8] unique value that my grid thinks is an image. I am creating a type of Query Analyzer form. A simple select * from mytable is given to an adapter... [code] QueryDataSet.Tables.Clear(); SqlDataAdapter adapter = new SqlDataAdapter(Query, conn); adapter.Fill(QueryDataSet,"Table"); DataResultsGrid.DataSource = QueryDataSet.Tables[0]; QueryBindingSource …

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Just trying to find out which of these five isprime functions is the fastest.

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I have scoured Stack over flow and the Pandas documentation for a solution to this issue. I am attempting to recursively move through a directory and concatenate all of the headers and their respective row values. Below is what I have so far after much experimentation with other libraries: import pandas as pd import csv import glob import os path = '.' files_in_dir = [f for f in os.listdir(path) if f.endswith('csv')] for filenames in files_in_dir: df = pd.read_csv(filenames) df.to_csv('out.csv', mode='a') However all of the headers and their corresponding values are stacked upon each other. In addition, the files' headers and …

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Hello, I am new to Python. I am learning boxsizer. I want to put two buttons on my panel. One at top right corner and one at bottom right corner. How do I achieve this? Thanks

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Here is the code for [B][COLOR="Red"]Insertion Sort, Bubble Sort and Selection Sort[/COLOR][/B] [B]Insertion Sort[/B] [CODE] #include <stdio.h> main() { int i,j,key; int a[5]={5,2,3,4,1}; for(i=1;i<5;i++) { key=a[i]; while(i>0 && a[i-1]>key) { j=a[i]; a[i]=a[i-1]; a[i-1]=j; --i; } } int k; for(k=0;k<5;k++) {printf("%d ", a[k]);} printf("\n"); } [/CODE] [B]Bubble Sort[/B] [CODE] #include <stdio.h> main() { int i,j,x; int a[5]={5,2,3,4,1}; for(i=0;i<5;i++) { for(j=i+1;j<5;j++) { if(a[i]>a[j]) { x=a[i]; a[i]=a[j]; a[j]=x; } } } int k; for(k=0;k<5;k++) {printf("%d ",a[k]);} printf("\n"); }[/CODE] [B]Selection Sort[/B] [CODE] #include <stdio.h> main() { int i,j,x,min,k; int a[5]={5,3,2,4,1}; for(i=0;i<5;i++) { min=i; for(j=i+1;j<5;j++) { if(a[min]>a[j]) { min=j; } x=a[min]; a[min]=a[j]; a[j]=x; } } …

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I have to convert a piece of C++ code to Python. Except I can't understand what it's doing. This is the code: [CODE]#include <iostream> using namespace std; int calculate(int values[], int size) { int answer = 0; for (int 1 =0; i< size; i +=1) } answer += values[1]; } return answer; } int main() { int myArray[5] = {0, 2, 4, 8, 16}; count << "The answer is " << calculate(myArray, 5); }[/CODE] This is my attempt at converting it to Python: [CODE]def main(): myArray[5] = (0, 2, 4, 8, 16) print "The answer is ", calculate(myArray, 5) def …

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What "Hello World" is to the console, the "Bouncing Ball" is to the Graphical User Interface. Nothing fancy, the ball is created via a call to the API function ellipse() and then bounced within the confines of the windows form. For the DEV C++ crowd: Let me know if you find these snippets somewhat helpful in your learning process in the comments section at the end.

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Reusable Code Snippet Bouncing ball

Wanted to let two forms work together. One form would be the input form and the main form would consume this data. I managed to succeed with the help of a few of my friends here at daniweb., who helped me setup a static form. Just posted a bit of the most relevant code here, the rest of the project can be found in the attachments. I also like to mention a technique used here to attach a value to a selection of a name in a combobox.(Found it on MSDN) See the list of Planets. (Yes, throw a ball …

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Hi, I am getting an error while making a vector. frame.h #include <wx/wx.h> class Frame : public wxPanel { public: Frame(wxPanel* parent, int xx, int yy); ~Frame(); private: int x; int y; } frame.cpp #include "frame.h" Frame::Frame(wxPanel* parent, int xx, int yy) :wxPanel(parent) { x = xx; y = yy; } Frame::~Frame() { } in another wxPanel , I am creating a vector- std::vector<Frame> vFrames; And using it in a function- FinalFrame::addFrame() { vFrames.push_back(Frame(this, 20, 40)); } And I am getting this error- `error: use of deleted function 'Frame::Frame(const Frame&)' ` Is this related to wx or I am coding …

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Hi! We are a 4 member group for our thesis and we already have submitted 5 topic proposals yet nothing was accepted...and here are the topics: enrollment system, gadgets on track, employment resource system, subdivision technical entry pass Now, I need a help for new ideas that can be developed through visual studio and it can be a web-based or window-based projects. Hope you can help me Thanks in advance!

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The End.