New Posts at Dream.In.Code

Unchecking Checkboxes in VB.NET

itistimmah — Fri, 20 Nov 2009 16:04:34 -0600

Your textboxes and checkboxes must both in the "C" groupbox for this to work. But it does work.

Graphics.Rendering.Cairo in Functional Programming

Raynes — Fri, 20 Nov 2009 15:59:30 -0600

http://www.cairographics.org/download/ Do you even have GTK+ installed on your system? If not, you're going to need to get this stuff on your system, and reinstall Gtk2hs.

Updating a JTextPane in Java

grimpirate — Fri, 20 Nov 2009 15:59:04 -0600

My problem is in the keyPressed method of the KeyStrokeListener class. The idea is that when I press the ENTER key on my keyboard it updates the JTextPane by appending what I've just typed into the JTextField. However, it doesn't do that. Any suggestions?

CODE

import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.Toolkit;

import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JSplitPane;
import javax.swing.JTree;
import javax.swing.JTabbedPane;
import javax.swing.JScrollPane;
import javax.swing.JTextPane;
import javax.swing.JTextField;

import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;

public class Text{
    private JTextPane textPane;
    private JTextField textField;

    public static void main(String[] args) {
        new Text();
    }

    public Text() {
        // Determine screen size
        Dimension windowSize = Toolkit.getDefaultToolkit().getScreenSize();
        windowSize.width = windowSize.width / 2;
        windowSize.height = windowSize.height / 2;

        // Instantiate JComponents
        JFrame frameMain = new JFrame();
        JPanel panelMain = new JPanel();
        JSplitPane paneSplit = new JSplitPane();
        JTree tree = new JTree();
        JTabbedPane paneTabbed = new JTabbedPane();
        JScrollPane paneScroll = new JScrollPane();
        textPane = new JTextPane();
        textField = new JTextField();

        // Set JComponent properties
        frameMain.setTitle("Text");
        frameMain.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frameMain.setSize(windowSize);

        panelMain.setLayout(new BorderLayout());

        paneSplit.setOneTouchExpandable(true);

        textPane.setEditable(false);
        textPane.setContentType("text/html");
        textPane.setText("<strong><font color=#cc0000>Text v1.0</font></strong>");

        // Add JComponents to their respective containers
        paneScroll.getViewport().add(textPane);

        paneTabbed.addTab("Tab", paneScroll);

        paneSplit.setLeftComponent(paneTabbed);
        paneSplit.setRightComponent(tree);

        panelMain.add(paneSplit, BorderLayout.CENTER);
        panelMain.add(textField, BorderLayout.SOUTH);

        frameMain.add(panelMain);

        // Finalize display
        frameMain.setLocationRelativeTo(null);    // Center JFrame
        frameMain.setVisible(true);               // Show JFrame

        paneSplit.setDividerLocation(0.80);

        class KeyStrokeListener implements KeyListener{
            public void keyPressed(KeyEvent e){
                switch(e.getKeyCode()){
                    case KeyEvent.VK_ENTER:
                        textPane.setText(textPane.getText() + textField.getText());
                        textField.setText(null);
                        break;
                }
            }
            public void keyTyped(KeyEvent e){}
            public void keyReleased(KeyEvent e){}
        }

        KeyStrokeListener keyboardListener = new KeyStrokeListener();
        textField.addKeyListener(keyboardListener);
    }
}

mod edit: took out =java so the code indented properly

Reversing the order of a Vector in C and C++

KYA — Fri, 20 Nov 2009 15:50:20 -0600

try catch goes inside main() not the whole thing.

guestbook in PHP

3liminat3r — Fri, 20 Nov 2009 15:39:42 -0600

QUOTE(BGDeveloper @ 20 Nov, 2009 - 01:31 PM) [snapback]840883[/snapback]

It means that you're trying to connect to your server, with wrong settings.
And as I can see, there is not a password set to connect.

Fix the line where you're using mysql_connect()

lol you dont give much info on how to fix.. but thanks anyways, ima google until i guess i figure it out..

vb timer in VB6

DR ADEL MAHGOUB — Fri, 20 Nov 2009 15:36:40 -0600

guide for progamming of timer[code]

Form Validation Error in JavaScript

BGDeveloper — Fri, 20 Nov 2009 15:35:30 -0600

Try with:

CODE

linking flat binarys in Assembly

sunion — Fri, 20 Nov 2009 15:31:35 -0600

bump?

I have a TABLE but only appear entries/records with select can in Databases

lse123 — Fri, 20 Nov 2009 15:30:26 -0600

I have a TABLE but only appear entries/records with select can...(java se6/access 2003) when use insert although shows success data added database[java program shows this] do not change (DSN use), well how I change privilege on a db table to appear added data (and not get false sense of) ???

OleDB SQL Problems in C#

JPollock — Fri, 20 Nov 2009 15:29:23 -0600

I cant seem to select a random record set from my access database.

This code pulls all records out randomly, but if iterated, it is the same order everytime (just not ordered by the primary key or anything)

CODE

OleDbDataAdapter adapter2 = new OleDbDataAdapter("Select top 5 url from stories ORDER BY rnd()", aConn);

Or if I try this code, it gives me the top 5 stories, but in ascending order.

CODE

OleDbDataAdapter adapter2 = new OleDbDataAdapter("Select top 5 url from stories", aConn);

I need to figure out how to pull out different random entries each time.

Thanks

access denied to \\windows\\system\\expl in C#

JackOfAllTrades — Fri, 20 Nov 2009 15:20:09 -0600

I smell malware!

Best RPG of all time? in Games

kowwok — Fri, 20 Nov 2009 15:16:20 -0600

You guys worried me for a couple pages there, no one mentioned chrono trigger or chrono cross /smile.gif" style="vertical-align:middle" emoid=":)" border="0" alt="smile.gif" />

1. Chrono Trigger
2. Final Fantasy 3
3. Dark Cloud 2
4. Final Fantasy 7
5. Dark Cloud 1

Where do you put your comments? in Corner Cubicle

BenignDesign — Fri, 20 Nov 2009 15:12:46 -0600

Generally speaking, I put my comments above and to the side.

On rare occasions, I will put a line BELOW the code, but only to indicate where a certain behavior ceases and only in cases of extremely obfuscated code (which I am remarkably good at creating /tongue.gif" style="vertical-align:middle" emoid=":P" border="0" alt="tongue.gif" />).

Calculator program in Java

navyjoe — Fri, 20 Nov 2009 15:11:41 -0600

Please help me get this to work!! Here is my assignment: Write a Calculator program that can be used to do operations on decimal numbers. (Note: If division by zero occurs with values of the int data type, the program throws a division by zero exception. However, if you divide a decimal number by zero, Java does not throw the division by zero exception; it returns the answer as infinity. However, if division by zero occurs, your calculator program must output the message ERROR: / by zero.)

My code"

[
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.io.*;

public class A6KO5321400 extends JFrame implements ActionListener
{
private JTextField displayText = new JTextField(30);
private JButton[] button = new JButton[19];

private String[] keys = {"7", "8", "9", "/",
"4", "5", "6", "*",
"1", "2", "3", "-",
"0", "C", "=", "+",
"M", "R", "E"};

private String numStr1 = "";
private String numStr2 = "";
private String memory = "";

private char op;
private boolean firstInput = true;

public A6KO5321400()
{
setTitle("My Calculator");
setSize(230,250);
Container pane = getContentPane();

pane.setLayout(null);

displayText.setSize(200,30);
displayText.setLocation(10,10);
pane.add(displayText);

int x, y;

x = 10;
y = 40;
for(int ind = 0; ind < 16; ind++)
{
button[ind] = new JButton(keys[ind]);
button[ind].addActionListener(this);
button[ind].setSize(50,30);
button[ind].setLocation(x, y);
pane.add(button[ind]);
x = x + 50;
if((ind + 1) % 4 == 0)
{
x = 10;
y = y + 30;
}
}

for(int ind = 16; ind < 18; ind++)
{
button[ind] = new JButton(keys[ind]);
button[ind].addActionListener(this);
button[ind].setSize(60,30);
button[ind].setLocation(x, y);
pane.add(button[ind]);
x = x + 60;
}

button[18] = new JButton(keys[18]);
button[18].addActionListener(this);
button[18].setSize(80,30);
button[18].setLocation(x, y);
pane.add(button[18]);

this.addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent e)
{
System.exit(0);
}
}
);

setVisible(true);
}

public void actionPerformed(ActionEvent e)
{
String resultStr;
String str = String.valueOf(e.getActionCommand());

char ch = str.charAt(0);

switch(ch)
{
case '0': case '1': case '2':
case '3': case '4': case '5':
case '6': case '7': case '8':
case '9': if(firstInput)
{
numStr1 = numStr1 + ch;
displayText.setText(numStr1);
}
else
{
numStr2 = numStr2 + ch;
displayText.setText(numStr2);
}
break;
case '+': case '-': case '*':
case '/': op = ch;
firstInput = false;
break;
case '=': resultStr = evaluate();
displayText.setText(resultStr);
numStr1 = resultStr;
numStr2 = "";
firstInput = false;
break;
case 'C': displayText.setText("");
numStr1 = "";
numStr2 = "";
firstInput = true;
break;
case 'M': memory = numStr1;
firstInput = false;
break;
case 'R': numStr1 = memory;
displayText.setText(numStr1);
firstInput = false;
break;
case 'E': System.exit(0);
}
}

private String evaluate()
{
final char beep = '\u0007';

try
{
int A = Integer.parseInt(numStr1);
int B = Integer.parseInt(numStr2);
int result = 0;

switch(op)
{
case '+': result = A + B;
break;
case '-': result = A - B;
break;
case '*': result = A * B;
break;
case '/': result = A / B;
}

return String.valueOf(result);
}
catch(ArithmeticException e)
{
System.out.print(beep);
return "E R R O R: " + e.getMessage();
}
catch(NumberFormatException e)
{
System.out.print(beep);
if(numStr1.equals(""))
return "E R R O R: Invalid First Number" ;
else
return "E R R O R: Invalid Second Number" ;
}
catch(Exception e)
{
System.out.print(beep);
return "E R R O R";
}
}

public static void main(String[] args)
{
A6KO5321400 C = new A6KO5321400();
}
}

]

word in C and C++

muychang — Fri, 20 Nov 2009 15:09:35 -0600

Hi my program counts words but it's counting period too, not sure whats wrong, any tips?

CODE

#include <iostream>
#include <cctype>
#include <cstring>

using namespace std;

// ********************
// Function Prototypes
// ********************

double wordCount( char [] );

//****************************************
// int main()
// This function is the guide
// for the main program
//****************************************

int main()
{

    char cstring[81];

    cout << "\nEnter a string, 80 or fewer characters:\n";
    cin.getline(cstring, 81);
    cout << "\nThe number of words in that string:  ";
    cout << wordCount( cstring ) << endl << endl;


    return 0;
}

//**********************************************
// wordCount(cstring)
// This function will do the wordCount, counting
// words, punctuation, and sum of characters.
//**********************************************

double wordCount(char cstring[] )
{

    int index = 0;
    int word = 0, punct = 0;
    double sumchar = 0.0;

    while ( cstring[index] != '\0' )
    {
        if  ( isspace( cstring[ index ] ) || ( ispunct( cstring[ index ] ) ) )
        {
            while ( isspace( cstring[ index ] ) || ( ispunct( cstring[ index ] ) ) )
            {
               index++;
            }
        }
        if ( isalnum( cstring[ index ] ) || ( ispunct( cstring[ index ] ) ) )
        {
             word++;     // we must be in a word


               while ( isalnum( cstring[ index ] ) || ( ispunct( cstring[ index ] ) ) )
            {
               index++;

               if ( ispunct( cstring[ index ] ) )
                  {
                   punct++; // punctuation counting
               }
               sumchar++; // sum of characters
            }
        }
        index++;

    } // endwhile

    return word;
}

Hi guys in Introduce Yourself

OliveOyl3471 — Fri, 20 Nov 2009 15:09:14 -0600

Hello & welcome to DIC! /smile.gif" style="vertical-align:middle" emoid=":)" border="0" alt="smile.gif" />

I'm sure you can learn a lot here. If you have programming questions, post them in the appropriate help forum, along with the code you've written in an effort to solve the problem yourself. Please use code tags and include any error messages you may be getting, along with a brief description of the problem. I'm sure you'll get an answer if you follow these guidelines.

/code.gif" style="vertical-align:middle" emoid=":code:" border="0" alt="code.gif" />

See ya around the site! /biggrin.gif" style="vertical-align:middle" emoid=":D" border="0" alt="biggrin.gif" />

ps I'm from Michigan originally, too. What part of MI are you in?

Hi everyone in Introduce Yourself

OliveOyl3471 — Fri, 20 Nov 2009 15:07:38 -0600

Palindromes checker in C and C++

quanhi21 — Fri, 20 Nov 2009 15:05:39 -0600

I'm having hard time on how to complete this palindromes checker program, please help me fill out the blank spots, thanks. I tried to fill out some already, but I got stuck on some of them even after reading the string chapter over and over again. Especially the "Remove all the special characters except letters a - z" portion, and compare the first and last char.

CODE

#include<stdio.h>
#include<string.h>
#include<stdlib.h>
#include<ctype.h>
int main()
{char str[80];
int strlength;
int j=0;
int front=0,back; int flag=1;
gets(str);
//Get the length of string str
strlength = strlen(str)
//Convert all the characters in the string str to uppercase
for(int i = 0; i < str; i++)
if(str[i])
str[i] = toupper(str[i]);
//Remove all the special characters except letters a - z
for(j = 0; j < str.length; j++)
if(isalpha(str[i]))
{str[j] = str[i];
------------------}
str[j]= '\0';
//front index is pointed to the first character in the string str
front = 0;
//back index points to the last character in the string str
back = ------------------;
//Compare the first character with the last character. If they're are the same,
//compare the next character.
for(i=0; i< j/2;i++)
{if(str[------] != str[---------])
{ flag = 0;
break;
}
front----;
back=back -1;
}
if(flag ---------- 0)
cout<<"It is not a palindrome"<<endl;
else
cout<<"It's a palindrome"<<endl;
return 0;
}

simulating alt+2 (keypad) combination in C and C++

Dogstopper — Fri, 20 Nov 2009 15:03:57 -0600

Does NumLock have anything to do with it (not really up to date with windows). If so, you may to make sure it is on/off when Windows starts your program.

Encryption Problem in Java

CyberKnight — Fri, 20 Nov 2009 14:59:59 -0600

Dumb mistake on my end, still getting the hang of this.

VB6 under Windows 7 64 bit in VB6

coppermouse — Fri, 20 Nov 2009 14:55:46 -0600

I agree with you, but during the course of swiching over I need to support the old stuff. Guess I will run on a virtual machine

Help with audio delay program set up in C and C++

syntheticmethod — Fri, 20 Nov 2009 14:55:44 -0600

Need help setting up audio effect program,have code but cant set up please help!!
I am a C++ beginner but know the basics i.e writing simple code compiling and build. I have DevC++ also Visual Studio 2008.

I'm big in to audio sequencers, and would like to set up a simple delay effect in C++.

Now, I have the code (open source from a website!) but I'm not quite sure how to set up as .exe. I think I need to set up a ".H" folder in my Cdrive so I can open the code below but not sure! I have also heard I may need "TurboC"??

Thank you anyone who can help. See code below...

#ifndef STK_DELAY_H
#define STK_DELAY_H

#include "Filter.h"

namespace stk {

/***************************************************/
/***************************************************/

class Delay : public Filter
{
public:

Delay( unsigned long delay = 0, unsigned long maxDelay = 4095 );

~Delay();

void setMaximumDelay( unsigned long delay );

void setDelay( unsigned long delay );

unsigned long getDelay( void ) const { return delay_; };

StkFloat contentsAt( unsigned long tapDelay );

StkFloat lastOut( void ) const { return lastFrame_[0]; };

StkFloat nextOut( void ) { return inputs_[outPoint_]; };

StkFloat energy( void ) const;

StkFloat tick( StkFloat input );

StkFrames& tick( StkFrames& frames, unsigned int channel = 0 );

StkFrames& tick( StkFrames& iFrames, StkFrames &oFrames, unsigned int iChannel = 0, unsigned int oChannel = 0 );

protected:

unsigned long inPoint_;
unsigned long outPoint_;
unsigned long delay_;
};

inline StkFloat Delay :: tick( StkFloat input )
{
inputs_[inPoint_++] = input * gain_;

// Check for end condition
if ( inPoint_ == inputs_.size() )
inPoint_ = 0;

// Read out next value
lastFrame_[0] = inputs_[outPoint_++];

if ( outPoint_ == inputs_.size() )
outPoint_ = 0;

return lastFrame_[0];
}

inline StkFrames& Delay :: tick( StkFrames& frames, unsigned int channel )
{
#if defined(_STK_DEBUG_)
if ( channel >= frames.channels() ) {
errorString_ << "Delay::tick(): channel and StkFrames arguments are incompatible!";
handleError( StkError::FUNCTION_ARGUMENT );
}
#endif

StkFloat *samples = &frames[channel];
unsigned int hop = frames.channels();
for ( unsigned int i=0; i<frames.frames(); i++, samples += hop ) {
inputs_[inPoint_++] = *samples * gain_;
if ( inPoint_ == inputs_.size() ) inPoint_ = 0;
*samples = inputs_[outPoint_++];
if ( outPoint_ == inputs_.size() ) outPoint_ = 0;
}

lastFrame_[0] = *(samples-hop);
return frames;
}

inline StkFrames& Delay :: tick( StkFrames& iFrames, StkFrames& oFrames, unsigned int iChannel, unsigned int oChannel )
{
#if defined(_STK_DEBUG_)
if ( iChannel >= iFrames.channels() || oChannel >= oFrames.channels() ) {
errorString_ << "Delay::tick(): channel and StkFrames arguments are incompatible!";
handleError( StkError::FUNCTION_ARGUMENT );
#endif

StkFloat *iSamples = &iFrames[iChannel];
StkFloat *oSamples = &oFrames[oChannel];
unsigned int iHop = iFrames.channels(), oHop = oFrames.channels();
inputs_[inPoint_++] = *iSamples * gain_;
if ( inPoint_ == inputs_.size() ) inPoint_ = 0;
*oSamples = inputs_[outPoint_++];
if ( outPoint_ == inputs_.size() ) outPoint_ = 0;
}
lastFrame_[0] = *(oSamples-oHop);
return iFrames;
}

} // stk namespace

#endif

connecting to a database in Java

EdwinNameless — Fri, 20 Nov 2009 14:47:03 -0600

QUOTE(circuspeanuts @ 18 Nov, 2009 - 01:40 PM) [snapback]838496[/snapback]

edit: the only way I can think to make the database work is to write 2 separate databases (one for password and one for username) and have them compare them separately and then together to see if they match up for the login but I don't know if that'll work.

I hope you mean �2 separate database queries�. You normally only need one, by selecting with both the username and password (salted and encrypted, obviously /mellow.gif" style="vertical-align:middle" emoid=":mellow:" border="0" alt="mellow.gif" /> )

Series and Parallel Circuit Calculator in C and C++

JackOfAllTrades — Fri, 20 Nov 2009 14:46:14 -0600

And why is PI defined in an Ohm's Law calculator?

Top 10 Windows Tools for IT Pros in Industry News

Nykc — Fri, 20 Nov 2009 14:41:20 -0600

With this being one writer's opinions there is no reason we cannot add to the list, any links to these tools would be greatly appreciated.