Comments by Member 9538830 (Top 37 by date)

Thank you very much ClimrChinna. I change it and solution works.

Although this may seem strange, but I still noticed a basic error (difference) that existed between the beginning of the program, and your solutions, that works.

Why "BirthdayParty" does not contain a definition for "getMessage" ... if BirthdayParty is derived class from HappyBirthday?

Thank you very much for your reply. Please bear in mind that I am a beginner and trying to learn how to use this forum.

If you look a little better, you're going to see that I thank the member who solved the problem and I accepted his solution.

These are errors:

//===============
// DERIVED CLASS
//===============
class BirthdayParty : HappyBirthday1 // Kakva je ovo greška???

Error 1 The type or namespace name 'HappyBirthday1' could not be found (are you missing a using directive or an assembly reference?)
………………………………………………………………………………………………………………………………………………………………….

private void button1_Click(object sender, EventArgs e)
.
.
.
MessageBox.Show( partyOn.getMessage("Shadid"));
MessageBox.Show(partyOn.getPresent(8));

Error 2 'BirthdayParty' does not contain a definition for 'getMessage' and no extension method 'getMessage' accepting a first argument of type 'BirthdayParty' could be found (are you missing a using directive or an assembly reference?)
Error 3 'BirthdayParty' does not contain a definition for 'getPresent' and no extension method 'getPresent' accepting a first argument of type 'BirthdayParty' could be found (are you missing a using directive or an assembly reference?)

Errors:
//===============
// DERIVED CLASS
//===============
class BirthdayParty : HappyBirthday1 // Kakva je ovo greška???

Error 1 The type or namespace name 'HappyBirthday1' could not be found (are you missing a using directive or an assembly reference?)
………………………………………………………………………………………………………………………………………………………………….

private void button1_Click(object sender, EventArgs e)
.
.
.
MessageBox.Show( partyOn.getMessage("Shadid"));
MessageBox.Show(partyOn.getPresent(8));

Error 2 'BirthdayParty' does not contain a definition for 'getMessage' and no extension method 'getMessage' accepting a first argument of type 'BirthdayParty' could be found (are you missing a using directive or an assembly reference?)
Error 3 'BirthdayParty' does not contain a definition for 'getPresent' and no extension method 'getPresent' accepting a first argument of type 'BirthdayParty' could be found (are you missing a using directive or an assembly reference?)

I tried your solution and it works. But, your solution gives resultes in three separate message boxes. Could you change it so that all of three results are in one message box.

Not yet, but I`ll try.

Does not work. Reports an error. The example is from a book.

Does not work. Reports an error. The example is from a book.

I saw that something was wrong with the code...

Hi Johannes,

Thank you very much for your very professional reply.

I tested code that you send me and it works, although it is not meaning of my homework.

I should solve a many complex task. Could you see it and tell me how would I solve it?

Learning of the basics is particular and parallel process independent of this my task.

Sincerely Yours,
Zeljko Vujovic

And, here it is the content of the file named "tekstualni fajl.txt":

27
349
1583
-2431
90712
-78534

This is the Source Code:

using System;
using System.Windows.Forms;
using System.IO;

namespace Rad_sa_tekstualnim_fajlom_1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}

private void cbIzborFile_SelectedIndexChanged(object sender, EventArgs e)
{
if(cbIzborFile.Text!="Izaberi fajl")
StreamReader f=new StreamReader("C:\\Users\\user\\Documents\\Visual Studio 2010\\Projects\\Rad sa tekstualnim fajlom 1\\Rad sa tekstualnim fajlom 1\\bin\\Debug\\tekstualni fajl.txt");
String s;
lbBrojevi.Items.Clear();
s=f.ReadLine();
while(s!=null)
{
lbBrojevi.Items.Add(s);
s=f.ReadLine();
}
f.Close();
gbIzbor.Enabled=true;
lRezultat.Text="";
rbMax.Checked=rbMaxBrojPojavljivanja.Checked=
rbMaxRazlikaUzastopnih.Checked=rbProsjek.Checked=false;
}

private void Form1_Load(object sender, EventArgs e)
{

}
}

private void rbMax_CheckedChanged(object sender, EventArgs e)
{
if(rbMax.Checked)
{ StreamReader f=new StreamReader("C:\\Users\\user\\Documents\\Visual Studio 2010\\Projects\\Rad sa tekstualnim fajlom 1\\Rad sa tekstualnim fajlom 1\\bin\\Debug\\tekstualni fajl.txt");
String s;
int max,x;
s=f.ReadLine();
max=Convert.ToInt32(s);
s=f.ReadLine();
while(s!=null)
{
x=Convert.ToInt32(s);
if(x>max) max=x;
s=f.ReadLine();
}
f.Close();
lbRezultat.Text="Max broj je "+max;
}
private void rbMaxBrojPojavljivanja_CheckedChanged(object sender, EventArgs e)
{
StreamReader f = new StreamReader("C:\\Users\\user\\Documents\\Visual Studio 2010\\Projects\\Rad sa tekstualnim fajlom 1\\Rad sa tekstualnim fajlom 1\\bin\\Debug\\tekstualni fajl.txt");
String s;
int max, x, bp;
s = f.ReadLine();
max = Convert.ToInt32(s);
bp = 1;
s = f.ReadLine();
while(s!=null)
{
x=Convert.ToInt32(s);
if(x==max)
bp++;
else if(x>max)
{
max=x;
bp=1;
}
s=f.ReadLine();
}
f.Close();
lbRezultat.Text="Maksimalni broj je "+max+" pojavljuje se "+bp+" puta";
}
}

Here it is the task that I should to solve:

TASK:
Create application which shows content of a chose file in an object of the class ListBox and than application determines:
- maximal number,
- maximal number and number of its appearings,
- average value of numbers,
- maximal value of two seceded numbers.

Choice of the file name realize using object of the class ComoBox.

Supposition is that files have one number in each line.

TUTORIAL:
Set up next object on the form:
- object of the class ComoBox,
- object of the class ListBox,
- object of the class GroupBox,
(Set up four objects of the class RadioButto into
this class for execution of the tasks of application.)
- object of the class Label,
(for showing required results)

EXPLANATION:
Source code with mentioned errors is an attempt for solving the task.

Thank you. I am translating a book.
Your solution is correct. Yes, I used Google translate.

Could you help me to solve next errors, also, please?
Error 1 Embedded statement cannot be a declaration or labeled statement
Error 2 Use of unassigned local variable 'f'
Error 3 Expected class, delegate, enum, interface, or struct
Error 4 Use of unassigned local variable 'f'
Error 5 Type or namespace definition, or end-of-file expected

Thank you. The problem was solved with correct writing word "Enable"

That is right! Problem was solved.

Thank you Wes.

Have you ever written any neural network application? If you have, which one would you single out and why?

You are still far from the solution, although your comments could be named as a wise, principally.

Could you be more precise, please?

This issue belongs to programming neural networks, multilayer perceptron, for example.

Why? Why you are skeptical about it?

Have you seen improvement that I posted below the first question of this discussion?
Could you tell me anything regarding that my new task?

Regarding previous question,

I should to solve next task:

4. Implementation
4.1. User requirements
(You need a modul for your foreign language learning system. Therefore the images will not be general, but frontally oriented face in front of the web camera – this can be used to simplify the face detection phase).
4.2. Chosen algorithm
(State of the art method, or hybrid of different state of the art methods, or your original method or hybrid of existing and your method)
4.3. Chosen technologies
4.4. User interface (as a part of the foreign language learning system)

How could I do that?

Why do you think that this is a waste of time?

Where could be the best place for disscussion my questions?

OK. Am I right?

Hello Nelek! Hello Sergey!

Thank you very much for your reply.

I apply kindly Sergey Alexandrovich take part in this discussion, my serious question as well as serious research and developmental problem.

My question and my interest is not FACE RECOGNITION, but, FACIAL EXPRESSION RECOGNITION, with ended goal to recognize emotion expressed by observed facial expression.
I am in the field of Human-Computer Interaction: Emotional Interface, subfield Automatic analysis of facial expressions.

I would like to extract several characteristic points from the arbitrary static image of the face. Those characteristic points would be inputs of one still existing algorithm recognizing emotion.

Am I clear? Do you understand my question and my intentions?

I am looking forward for reply both of you.

Sincerely.