Overclock.net - Overclocking.net - Coding and Programming

Pie graph - Javascript

godsgift2dagame — Fri, 20 Nov 2009 19:47:53 GMT

Hey,

I need some help with a javascript "graph" that would retrieve the data from a survey and/or form and output it in a pie graph of some sort. I've looked at places like DynamicDrive, but they have absolute values while I need the array to retrieve the data off XML. Does anyone know how I'd go about it, or could anyone give me an example?

C++ for FIRST Robotics Competition

Darkknight512 — Thu, 19 Nov 2009 23:16:36 GMT

I am in my schools robotics team and I am the only programmer on the team so I will have a lot of work to do once we get to the 6 week building season. I am wondering if anyone knows what C++ library they use in the FIRST Robotics Competition.

I know they use RobotC in FIRST Tech Challenge but I believe they use something else for FRC.

We don't get much information on the game until January 6, 2010 but I want to familiarize myself with the how the library is used to control motors, and solenoids.

Thanks

I need help, upgrading a mini game in C

Exutus — Thu, 19 Nov 2009 17:22:26 GMT

Hi!
Well, since I started learning C the other day, I thought it was pretty cool... I went through a few things, and just learned about loops. (*EDIT: Forgot to mention the language... it's C )

So, this post is to ask if you cuold shed me some light, without giving me the code right away, you see my little game below; I want to upgrade it.

If you can give me a well detailed picture, I would appreciate since I need to learn, so neither a direct asnwer or formula would do.

I want:

1) The program to count the number of times the user tried a number before finding the random one.
printf("Contrats, after % number of times, you found it", variable)

2) I want the program to ask if the user want to try another game, using booleen (always true, false = endgame)

and 3rd) I want it to be a 2 players game, someone enters the "random" number, and the other person tries to find it... BUT! We MUST be able to choose wether its gonna be a 1 player (random generated number) or 2 players.

:)
I need some help from you coders :shock2:

Code:

/*



Less or More Mini-game-------------



*/





#include 

#include 

#include 





int main ( int argc, char** argv )

{

    int guessNumber = 0, inputNumber = 0;

    const int MAX = 100, MIN = 1;



    // Generating the random number



    srand(time(NULL));

    guessNumber = (rand() % (MAX - MIN + 1)) + MIN;



    /* Loop of the program. It repeats until the user finds the guessNumber

    */



    do

    {

        // It asks for the number

        printf("What is the number ? ");

        scanf("%d", &inputNumber);



        // We compare the input number with the guessNumber



        if (guessNumber > inputNumber)

            printf("It's more !\n\n");

        else if (guessNumber < inputNumber)

            printf("It's less !\n\n");

        else

            printf ("Congrats, you found the mysterious number !!!\n\n");

    } while (inputNumber != guessNumber);



}

Forgot bat command :(

FiX — Thu, 19 Nov 2009 05:23:15 GMT

Hi everyone.

I was just programming a bat script and forgot what is the command to show the contents of a file, for instance a txt document.

Thanks, FiX

could use someone familiar with html and javascript to get a form to work right

Dark-Asylum — Thu, 19 Nov 2009 04:40:05 GMT

if anyone has some time and can get on xfire or aim, i have the javascript for a really simple applet however i dont know how exactly how to get it to work with the buttons that are provided by this form my teacher gave us.

thanks

Issue with Batch File

Mrzev — Wed, 18 Nov 2009 16:07:38 GMT

I have a small batch file that i am working on that will check for new files within certain folders and Download them to my external drives. It will also detect what drive letter my external drive is. Once it works, I am going to have it loop to the beggining so it will loop continuous, thus giving me a neet backup tool.

The problem that i am having is in the first for loop. When the forfiles run, it never SETs the variable. I can put ECHO in front and it will echo what i need to record, but when i remove it, it wont be stored.

Also, if you have a better recomendation on how to go about this, please let me know.

Code:

@echo off

cls



Set TODAY=%DATE%

ECHO %TODAY%



REM - This finds the drive letter and directory in my External Hard Drive

FOR %%L IN (A B D E F G H I J K L M N O P Q R X) DO forfiles /p %%L: /s /m Bob /c "cmd /c if @isdir==TRUE SET Bob=@path"

FOR %%L IN (A B D E F G H I J K L M N O P Q R X) DO forfiles /p %%L: /s /m Michael /c "cmd /c if @isdir==TRUE SET Michael=@PATH"

ECHO ------

ECHO %Bob%

ECHO %Michael%

Echo -------

PAUSE



REM - This checks my mapped drives for new files in those folder and then copys it to my exernal drives.



FOR %%L IN (W Y Z) DO forfiles /p %%L: /d:%TODAY% /s /m Bob /c "cmd /c echo replace @path %Bob% /a"

FOR %%L IN (W Y Z) DO forfiles /p %%L: /d:%TODAY% /s /m Michael /c "cmd /c echo replace @path %Michael% /a"



ECHO Finished copying.

PAUSE

Fast log off

Aaroman — Tue, 17 Nov 2009 16:45:10 GMT

Some time ago someone posted up some code for a fast shut down.

Could someone help me out to get a a similar thing for a fast log off?

The Square Root Function?

AMD+nVidia — Tue, 17 Nov 2009 02:15:42 GMT

We've been given this STUPID assignment to "learn loops" in Java class.

We have to calculate the square root of a number, without using the built in square root function :doh:

Here's the damn instruction

Code:

         FindRootBabylonian() // calculates the square root using   Babylonian algorithm and modifies the count instance data

         FindRootHeron()   // calculates the   square root using the Heron algorithm and modifies the count instance data

I've Googled all over, trying to figure out this crap. (I know how to use loops very well, I'm just clueless about these two "algorithms."

If someone can give me an idea how to calculate the roots via these "methods" that'd be great.

I don't need the code or anything, just an idea of how to calculate them via these methods.

Help is rewarded

problem with threads/semaphores

serge2k — Mon, 16 Nov 2009 23:12:09 GMT

I need one thread to continually generate (increment counters to max of 100) H, O, and C.

When I get 12H, 6O, 6C I need to have my other thread decrement the counters by appropriate amounts

Code:

#include 

#include 

#include 

#include 

#include 

#include 



int HMol = 0;

int CMol = 0;

int OMol = 0;

int glucose = 0;

sem_t lock;

    int count = 0;

void generate(void);

void consume(void);

int main()

{

    sem_init(&lock, 0, 1);

    pthread_t generator, consumer;

    pthread_create( &generator, NULL, generate, NULL);

    pthread_join(generator, NULL);

    pthread_create( &consumer, NULL, consume, NULL);

    pthread_join(consumer, NULL);

    return 0;

}



void generate()

{

    printf("H: %i\tO: %i\tC: %i\n", HMol, CMol, OMol);



    while(count++ < 50)

    {

        int i = rand()%3;

        sem_wait(&lock);

        switch(i)

        {

            case 0: if(HMol < 100) HMol++;

                    break;

            case 1: if(CMol < 100) CMol++;

                    break;

            case 2: if(OMol < 100) OMol++;

                    break;

        }

        printf("H: %i\tO: %i\tC: %i\n", HMol, CMol, OMol);

        sem_post(&lock);

    }

}



void consume()

{

    while(count < 50)

    {

        printf("Trying\n");

        sem_wait(&lock);

        if(CMol >= 6 && HMol >= 12 && OMol >= 6)

        {

            glucose++;

            CMol -= 6;

            HMol -= 12;

            OMol -= 6;

        }

        if(sem_post(&lock) == -1)

        {

            fprintf(stderr, "Unable to unlock semaphore");

        }

    }

}

right now it just generates, never decrements.

Java Programming Help

Buster — Mon, 16 Nov 2009 03:49:04 GMT

import java.util.Scanner;
public class Program12 {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
String[] words = new String[1000];
int n = 0;
boolean status = false;
do {
System.out.print("Please enter a word: ");
words[n] = input.next();
status = words[n].equals("$$$");
n++;
} while (status == false);
sort(words, n);
for (int s = 0; s < n; s++) {
System.out.println(words[s]);
}
}
public static void sort(String[] words, int length) {
String hold;
for (int n = 0; n < length - 1; n++) {
for (int m = n + 1; m < length; m++) {
hold = words[n];
words[n] = words[m];
words[m] = hold;
}
}
}
}

How do I print each word that I inputted once? Such as when I input pork, late, moon, and late. Late should be printed once. How do I print a count beside each word telling how many times it occurs?

what is this old program? 10 Print "" 20 print "" 30 goto 10

Dead! — Mon, 16 Nov 2009 02:39:05 GMT

I mean... it probably wouldn't work on a new version of windows such as XP or vista (I know the irony in saying XP is new)... But if I wanted to run that on an old PC what would I have saved it as? I should know this... Alas I don't!

Connection Issue, or browser??? Cant get to Regions.

l4n b0y — Sun, 15 Nov 2009 02:14:58 GMT

Did not where else to put this, but i figured maybe, by SOME CHANCE, someone here would be able to help me.

For some reason, no matter what, i can not load up Regions.com to check my banking, just says "page not responding", firefox or IE8. I can go to any other website, do anything else, but just not regions. funny thing is i can access the site by going through a proxy, however i cant log in that way. obvioulsy the tech support from Verizon(my ISP) is as about as helpful as a sack of potatoes. They said contact the manufacturer of my PC, as its my problem, not theirs. (i laughed a little)

any help would be GREATLY appreciated. i have tried the normal, ccleaner, browser reset/reinstall, router/modem reset, and all that, and to no avail????

any decent javascript debuggers?

Dark-Asylum — Fri, 13 Nov 2009 09:11:18 GMT

right now for my class im using coffeecup to right javascript in html so all i get is an html source file. it runs but after the first prompt for input it just says that the script is making my browser really slow and asks if i want to close it, if i dont close it nothing happens anyway. im not getting any script errors and this editor doesnt show syntax errors and doesnt have debugging so...any help would be appreciated

[C++ Help Needed] Passing information from a text file to an array to a function

TheGrayNobleman — Thu, 12 Nov 2009 11:58:09 GMT

:wheee:

[SOLVED]C won't add floats...

nathris — Thu, 12 Nov 2009 04:25:08 GMT

I'm working on a scheduling/multithreading assignment, and I'm creating multiple threads that wait for different periods of time before finishing.

I was having issues with all of the threads finishing at the same time, despite having different waiting times.

I put some debug statements in and I simply cannot believe what I'm seeing:

Quote:

float a = args->arr*1000;
float s = ((float)start.tv_sec*(float)1000) + ((float)start.tv_usec/(float)1000);
float f = s + a;
printf("Arrival time = %f\nStart = %f\nFinish = %f\n", a,s,f);

I tried to make it as clear as possible for debugging purposes, and somehow I get this as output:

Quote:

Arrival time = 300.000000
Start = 1257999564800.000000
Finish = 1257999564800.000000
Flow 1 arrives: arrival time (0.30), transmission time (6.0), priority ( 3).
Arrival time = 600.000000
Start = 1257999564800.000000
Finish = 1257999564800.000000
Flow 2 arrives: arrival time (0.60), transmission time (7.0), priority ( 1).
Arrival time = 300.000000
Start = 1257999564800.000000
Finish = 1257999564800.000000
Flow 3 arrives: arrival time (0.30), transmission time (5.0), priority ( 3).

Now, Start is s, Finish is f, and Arrival is a, and if you trace the code you'll see that f = s + a, and if you trace that to the output you'll see that for the first you get 1257999564800.000000 + 300.000000, which should equal 1257999565100, but instead the addition apparently never happens!

OMG I BROKE C

Any ideas before I send this off to my prof?

Java assignment help

gex80 — Thu, 12 Nov 2009 01:34:02 GMT

I have no idea what to do. I understand what the assignment wants but I don't know how to go about doing it.

Attached is the code and the pdf describing the details. Help would be great seeing as I suck at java

Attached Files

	Assignment3 directions.pdf (7.7 KB)
	Assignment 3.zip (14.1 KB)

I am brand new to programming{hellp}

k1ngcor3y — Wed, 11 Nov 2009 19:03:23 GMT

I'm teaching myself in my spare time (which is plentiful since i got fired recently). I have NO previous experience with any language and I want to knnow what language will give me a better understanding and be easier to move to other languages.
BUT I need it to be fairly easy to grasp in the beginner stages. I'm in school now to get AA in computer programming and my school will be teaching a beginner C++ class but after that it is all JAVA. and a SQL class at the end. I want to do some programming in spare time to prepare for these classes and get a deeper understanding is java easy to learn?

Also I read that Android uses JAVA for their apps and I want to develop apps for mobile devices.

Is there Game Devs here ?

Exutus — Wed, 11 Nov 2009 16:54:17 GMT

(Game developpers)

Didn't know where to post this thread... Here or in Video Games - General.
Or music.

The thing is that I make music, and I want to make some for videogames sinces many years (started making demos back in 2003).

I'm looking for some people (Game developpers) who would be looking for a sound/music guy.
LoL.

edit: bleh... here's an example of some stuff that could fit, let's say, something maybe...
If that sounds good, be sure that I can come up with something sounding the opposite (demonic)

YouTube- For a fairy from Paradise

Backup Shell Script and CRON job?

sc30317 — Tue, 10 Nov 2009 18:19:37 GMT

hey all,

I need some help making a backup script for a project. I have a directory on my computer (/home/images/) that I would like to backup when the folder gets to be a specific size (200MB). When the folder gets to be this size, I would like to make a .tar.gz of the pictures, put the pictures in the backup folder, and then delete the images. Here is what I have so far (doesn't work)

Code:

#!/bin/bash

# Backup Script



echo "\nWelcome to the backup script\n"

cd /home/images



//here is where the size issue comes into play?

tar -pczf -N `date`.tar.gz /home/images/backup 



fi



exit 0;

Can anyone help?

GUI interface using visual basic to track the killers IP address

Exutus — Tue, 10 Nov 2009 04:16:42 GMT

I'm new, but I recognize a fail in writing that script.

:gotproof:

YouTube- GUI interface using visual basic to track the killers IP address CSI

Learning to program at the age of 25. IS IT TOO OLD?

Exutus — Mon, 09 Nov 2009 19:48:22 GMT

:kookoo:

I see kids on forums that started like at 13-14.
Here I am, starting with C at 25.

(took some BV in highschoolwhen I was 14 but was fooling around much of the time, downloading Emus and Roms and learning how to unzip .zips as well)
LOL

My very first C program compiles but..lol (help)

Exutus — Mon, 09 Nov 2009 05:02:37 GMT

Hey! :) So I printed an e-book to learn C in 7 days.

Well at the end of the 1st day/lesson, they want the students to make a program of their own... like 2+3=5 or something...
And I thought I had to do something a little bit more useful to me than learning to count, because I think I understood how to get 2+3 to work like c=a+b

Anyway, my program is to calculate the Delay (in MiliSeconds) that I need to set in a guitar pedal, to play along with a given tempo, so the notes repeat between the bars... anyway that's not important if you are not so much in music hehe.

The problem is that, I'd probably learn the stuff in day/lesson 2 but I want a feedback of you guys, and why it doesn't work as I want it to.

I learned the // so I wrote the instructions :)
You may laugh because it's my very first (beside Hello world tuto and 3-4 examples).

Here's the Code:

#include
main() //This program is to calculate a certain DELAY value for a given tempo
{
int e,m,x,y;
printf("Enter value for x :"); //That would be the BPM's
scanf("%d",&x); //I enter let's say.. 120PBM
y=m/x; //I need to divide a minute by the BPM's value
m=60; //Here is where I define the value of a minute in seconds
e=y/2; //E is the result I want (The result of the 1st equation above divided by 2)
printf("Echo = %d\n",e);
system("pause");
}

Thanks!

C++: Class Time

Mikey122687 — Mon, 09 Nov 2009 01:36:06 GMT

PHP Code:


		
			
#include 
#include 
using namespace std;



class Time
{
public:
    int hour;
    int minute;
    int second;
    int time;

    Time()
    {
        time = time(0);
    }

    Time(int newTime)
    {
        time = newTime;
    }

};

int main()
{
  Time time;
  cout << time.getHour() << ":" << time.getMinute() << ":" << time.getSecond() << endl;

  Time time1(555550);
  cout << time1.getHour() << ":" << time1.getMinute() << ":" << time1.getSecond() << endl;

  return 0;
}


int time()
{
  int totalSeconds = time(0);

  int currentSecond = totalSeconds % 60;

  int totalMinutes = totalSeconds / 60;

  int currentMinute = totalMinutes % 60;

  int totalHours = totalMinutes / 60;

  int currentHour = totalHours % 24;

  return currentHour, currentMinute, currentSecond;
}

Ok so i have that so far.

The purpose of this code is to display the current time, and display the time if the seconds were 555550. The result should be something like:

Current Time is hh/mm/ss

Current Time for 555550 seconds is 10 hours, 19 minutes, 9 seconds.

I don't know where to go from here.

As with my other threads, any help deserves REP++ :D

Random Number Generator in C++

JTD92 — Mon, 09 Nov 2009 01:04:10 GMT

How do randomly generate a number from 1 to 6 in C++?

Thanks

Easiest language to start with?

Cyberbot — Sun, 08 Nov 2009 13:29:21 GMT

Hey.
So what programming language is the easiest to start with and easy to move on to other languages? What I'm looking for is the best starter language :)
I've been searching the web but it's different from thread to thread, some say it's Python, some says it's Visual Basic and some say that you should just jump right into Java or C++.. :headscrat I'll appreciate any answer, oh and please include why that language is the best to start with and maybe some websites with tutorials and stuff :D

/Cyberbot

Visual Basic or C++

mikek1024 — Sun, 08 Nov 2009 09:02:06 GMT

Hey guys. Have to take intro classes to both C/C++ and Visual Basic at college. I don't want and couldn't handle taking them both at the same time. Which one should I take first?

Can someone write a basic code for me?

meticadpa — Sat, 07 Nov 2009 14:14:08 GMT

Hi. :)

Well, I need a code to translate Celsius, into "Girs".

Quote:

Originally Posted by TnB= Gir (Post 7588528)

I think we should use a whole new temperature scale. Take the given values of said measurement in all three main systems (F, C, and K), add them up, divide by three, and multiply it by the speed of light squared.

Simple.

That's how you get "Girs" but I'd like a program that can do this automatically, for lolz. :p

You might get a nice surprise if you do it for me. ^^

Help with error in my C++ homework... (program done, error fixed :D, 1 little bug..)

31337 — Sat, 07 Nov 2009 00:28:40 GMT

Ok, I have the program done, and down to 1 error, but I have no clue what it could be. It'd be great if you guys could help me find this error. (oh, and in case you're wondering, yes the chapter is on functions :P )

Here's the source:

Code:

/*

Name:                Nathan Peterson

Date:                November 4, 2009

Assignment: Chapter 5 Programming Exercise 14

*/



#include 

#include 

#include 

#include 

using namespace std;



void reset(string& name, int& t1, int& t2, int& t3, int& t4, int& t5, double& avgT);

void readStudent(ifstream inData, string& name, int& t1, int& t2, int& t3, int& t4, int& t5);

void calculateAverage(int t1, int t2, int t3, int t4, int t5, double& avgT);

int calculateGrade(double avgT);

void writeDisplay(ofstream& outData, string name, int t1, int t2, int t3, int t4, int t5, double avgT, char grade);



int main()

{

        int t1=0;

        int t2=0;

        int t3=0;

        int t4=0;

        int t5=0;

        string name="";

        double avgT=0.0;

        int count=0;

        double sumAvg=0.0;

        double classAvg=0.0;

        char grade=' ';



        ifstream inData;

        ofstream outData;

        inData.open("C:\\Ch5PE14in.txt");

        outData.open("C:\\Ch5PE14out.txt");



system("cls");



        cout << "Student" << setw(5) << "Test1" << setw(3) << "Test2" << setw(3) << "Test4" << setw(3) << "Test5" << setw(3) << "Average" << setw(8) << "Grade" <


        while(inData.eof())

        {        

                reset(name, t1, t2, t3, t4, t5, avgT);

                readStudent(inData, name, t1, t2, t3, t4, t5);

                calculateAverage(t1, t2, t3, t4, t5, avgT);

                grade=(calculateGrade(avgT));

                static_cast(grade);

                writeDisplay(outData, name, t1, t2, t3, t4, t5, avgT, grade);

                sumAvg=sumAvg+avgT;

                count++;

        }



        classAvg=(sumAvg/count);



        cout << "Class Average= " << classAvg <


        inData.close();

        outData.close();



return(0);

}



void reset(string& name, int& t1, int& t2, int& t3, int& t4, int& t5, double& avgT)

{

        t1=0;

        t2=0;

        t3=0;

        t4=0;

        t5=0;

        name="";

        avgT=0.0;

}



void readStudent(ifstream inData, string& name, int& t1, int& t2, int& t3, int& t4, int& t5)

{

        inData >> name >> t1 >> t2 >> t3 >> t4 >> t5;

}



void calculateAverage(int t1, int t2, int t3, int t4, int t5, double& avgT)

{

        avgT=((t1+t2+t3+t4+t5)/5);

}



int calculateGrade(double avgT)

{

        char grade=' ';



        if(avgT>=.9)

                grade='A';

        else if(avgT>=.8)

                grade='B';

        else if(avgT>=.7)

                grade='C';

        else if(avgT>=.6)

                grade='D';

        else

                grade='F';



        return grade;

}



void writeDisplay(ofstream& outData, string name, int t1, int t2, int t3, int t4, int t5, double avgT, char grade)

{

        outData << name << t1 << t2 << t3 << t4 << t5 <


        cout << name << t1 << t2 << t3 << t4 << t5 <
}

The program is supposed to read a name and a series of five test scores from a file, then calculate the average for that student's tests and their grade, as well as the overall class average. Then it needs to output it to a text file, and to the screen. (Oh, and the functions "calculateAverage" and "calculateGrade" are required by the assignment)

The data it's reading is in this format:

Johnson 85 83 77 91 76
Aniston 80 90 95 93 48
Cooper 78 81 11 90 73
Gupta 92 83 30 69 87
Blair 23 45 96 38 59
Clark 60 85 45 39 67
Kennedy 77 31 52 74 83
Bronson 93 94 89 77 97
Sunny 79 85 28 93 82
Smith 85 72 49 75 63

Here's the error I keep getting:

Code:

c:\program files (x86)\microsoft visual studio 9.0\vc\include\fstream(676) : error C2248: 'std::basic_ios<_Elem,_Traits>::basic_ios' : cannot access private member declared in class 'std::basic_ios<_Elem,_Traits>'

1>        with

1>        [

1>            _Elem=char,

1>            _Traits=std::char_traits

1>        ]

1>        c:\program files (x86)\microsoft visual studio 9.0\vc\include\ios(151) : see declaration of 'std::basic_ios<_Elem,_Traits>::basic_ios'

1>        with

1>        [

1>            _Elem=char,

1>            _Traits=std::char_traits

1>        ]

1>        This diagnostic occurred in the compiler generated function 'std::basic_ifstream<_Elem,_Traits>::basic_ifstream(const std::basic_ifstream<_Elem,_Traits> &)'

1>        with

1>        [

1>            _Elem=char,

1>            _Traits=std::char_traits

1>        ]

Thanks for any help!

Help with Java Pizza

mojoopo — Fri, 06 Nov 2009 21:59:04 GMT

Ok so i am working on an assignment and iv been trying to figure out the error i am getting when compling heres a screen shot of the error and below is the code:

Code:

public class DemoSwitch

{



    public static void main(String args[])

    {

        char num = 's';

        String checksize;



        switch(num)

        {

            case 's' :   checksize = "Small";

                       break;

            case 'm' :   checksize = "Medium";

                       break;

            case 'l' :   checksize = "Large";



            

        }



        if ((checksize == "Small")||(checksize == "Medium")||(checksize == "Large"))

        {

            System.out.println("Your Size is: " + checksize);

        }

            



        else

        {

            System.out.println("Invalid");

        }

            

    }



    

}

Attached Thumbnails

Overclocking a Keyboard control

Coolwaters — Fri, 06 Nov 2009 09:18:25 GMT

not sure if this is in the right spot...

im having a hard time increasing my keyboard repeater speed beyond 31.
in my control panel/keyboard properties/speed i can only get the repeat rate to 31 (the number value) which is max out on the properties.

i heard you can increase it beyond that with a regedit. but all the ones i used doesnt work. am i using the wrong programs?

thanks.

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