The Official Programming Thread

[Shary Bhallu TC]

Poori raat beth k banaya, nahi bana.
Subah uth ker 5 minute socha, foran ban gya XD.

Wtf is this sorcery?

 

[Gizmo]

@Shary Bhallu TC ...... I guess youn just needed to sleep on it :hah:

 

[Shary Bhallu TC]

This same thing happens in games as well! For example if I am unable to beat a difficult ass Dark Souls 2 boss for hours, then sleep for a few hours, I see that I am able to beat that boss pretty easily. I think our brain does far more than just sleep when we're sleeping.

 

[MegamanEXE]

Poori raat beth k banaya, nahi bana.
Subah uth ker 5 minute socha, foran ban gya XD.

Wtf is this sorcery?

Get used to it. This will happen more times than you'll like to admit.

So, if you're stuck for over an hour or 2 using the PC. Leave it, do other stuff, the solution will come as an epiphany! Trust me, happened to me a hundred times. Quoting someone on Quora:
"Programming" is thinking, not typing. Most of programming is spent sleeping, walking around, staring out the window, or doing anything else that helps you relax and think."

 

[Shary Bhallu TC]

Yes my bro said the same thing. One time he was stuck on a problem at his job for 2 days, working 12 hours a day to no avail. He couldn't get his code to work. Then he took a day off from work because he was very tired. After sleeping for almost half of the day, he stumbled upon the solution as soon as he woke up. Called his boss, went to work despite his day off, and his code worked.

Our brains do indeed work while we sleep. Sometimes I've noticed that sleeping for 4-5 hours after studying will help you retain the information you digested just prior to sleeping. I used this technique in the previous hellish semester. It helped me a lot !

 

[EternalBlizzard]

Human brain keeps on finding a solution to the problem even while asleep That's pretty much a fact now
It keeps on finding a pattern through your problems or so as they say :s A scary thing it is right

 

[Spartan 117]

Poori raat beth k banaya, nahi bana.
Subah uth ker 5 minute socha, foran ban gya XD.

Wtf is this sorcery?

Happens a lot in programming. Many times I was stuck at understanding a code or a problem etc, and at the strangest moments the solution came to me like a revelation.

 

[puppet]

^^ thats why before coding anything i just make up my mind before designing algo

 

[Newton]

gentlemen, the best time/place to think of a code/algorithm/bug is the bathroom

 

[MegamanEXE]

gentlemen, the best time/place to think of a code/algorithm/bug is the bathroom

That's my last resort. I save my best power for last. If you use this power all the time, it'll lose its charm.

 

[Gizmo]

nothing beats taking a dump tho, that really gets the brain going :tv:

 

[Salvation]

Anybody here who has done the GLUT thing, aka OpenGL/Computer Graphics with C++ and Visual Studio.....?

yea, i have some basic idea about it.

 

[Priori]

Hello, I'm looking to learn a new programming language. I have some experience with Android Application Development.

My target is to learn Unity 3D. Can anyone point me to a decent learning resource for beginners or give me any tips etc?

 

[puppet]

Hello, I'm looking to learn a new programming language. I have some experience with Android Application Development.

My target is to learn Unity 3D. Can anyone point me to a decent learning resource for beginners or give me any tips etc?

c#...... !

 

[EternalBlizzard]

Unity 3d uses Boo and JS too but C# is better i guess ...

 

[puppet]

Unity 3d uses Boo and JS too but C# is better i guess ...

both js n c# is good to learn but yes once in unity i only used c# i have no experience in js

 

[Scholarships345]

thanks to share it

 

[Benighted]

I've never had those moments of epiphany. I've only ever been able to break down challenging problems by persistent mental effort. And I've only ever done pretty basic programming.

 

[Hassan]

Can anyone solve this question for me?

Spoiler: show

Create a class called shape using a Header containing only class member functions prototypes (not Definition’s). Store your program in 3 separate files named as Class_Name .h Class definition only function prototypes Class_Name .cpp Class member functions definitions File_Name.cpp Main program for operation
Create a class called shape using a Header containing only class member
functions prototypes (not Definition’s). Store your program in 3 separate files
named as
Class_Name .h  Class definition only function prototypes
Class_Name .cpp  Class member functions definitions
File_Name.cpp  Main program for operation

Your Output should appear as:
Enter your choice (T) for Triangle and (R) for Rectangle and (E) to Exit
T
Enter Value for x 6
Enter Value for y 7
Triangle
Values entered are 6 and 7
Area is 21
Enter your choice (T) for Triangle and (R) for Rectangle and (E) to Exit
R
Enter Value for x 7
Enter Value for y 6
Rectangle
Values entered are 7 and 6
Area is 42
Enter your choice (T) for Triangle and (R) for Rectangle and (E) to Exit
E
Exiting

My poor try with loads of errors

#include<iostream>
#include<string>
usingnamespacestd;
 
class shape 
{
private:
       inta,b;
public:
       shape()
       {
       a = b = 0;
       }
      
       voidsetvalues()
       {
       cout<<"Enter the values for breath and height:"<<endl;
       cin>> a; cin>> b;
    }
 
       floatarea_r()
       {
       float arear = (a*b);
       return arear;
       }
 
       floatarea_t()
       {
       floatareat = (a*b) / 2;
       returnareat;
       }
 
       voidgetvalues(int x, int y)
       {
       x=a;
       y=b;
       }
 
};
 
voiddisp(int, int, float);
 
int main()
{
       shapevar;
       intm,n;
       stringt,r,e,c;
 
       cout<<"Enter your choice (T) for Triangle and (R) for Rectangle and (E) to Exit:"<<endl;
       getline (cin,c);
      
       do
       {
             
              if (c==t)
              { var.setvalues(); var.area_t(); var.getvalues(m,n); disp(m,n, var.area_t());}
      
 
       elseif (c==r)
              {var.setvalues(); var.area_r(); var.getvalues(m,n); disp(m,n, var.area_r()); }
      
 
       } while (c!=e);
 
       system("PAUSE");
 
return 0;
}
 
voiddisp(inta,int b, float c)
{
       cout<<"The values entered are:"<<endl;
cout<< a << b;
       cout<<"The area is:"<<endl;
       cout<< c;
}

Creating a header file and defining its function in another file is easy. I need help regarding the logic which is to be made.

 

[MegamanEXE]

Can anyone solve this question for me?

Spoiler: show

Create a class called shape using a Header containing only class member functions prototypes (not Definition’s). Store your program in 3 separate files named as Class_Name .h Class definition only function prototypes Class_Name .cpp Class member functions definitions File_Name.cpp Main program for operation
Create a class called shape using a Header containing only class member
functions prototypes (not Definition’s). Store your program in 3 separate files
named as
Class_Name .h  Class definition only function prototypes
Class_Name .cpp  Class member functions definitions
File_Name.cpp  Main program for operation

Your Output should appear as:
Enter your choice (T) for Triangle and (R) for Rectangle and (E) to Exit
T
Enter Value for x 6
Enter Value for y 7
Triangle
Values entered are 6 and 7
Area is 21
Enter your choice (T) for Triangle and (R) for Rectangle and (E) to Exit
R
Enter Value for x 7
Enter Value for y 6
Rectangle
Values entered are 7 and 6
Area is 42
Enter your choice (T) for Triangle and (R) for Rectangle and (E) to Exit
E
Exiting

My poor try with loads of errors

#include<iostream>
#include<string>
usingnamespacestd;
 
class shape 
{
private:
       inta,b;
public:
       shape()
       {
       a = b = 0;
       }
      
       voidsetvalues()
       {
       cout<<"Enter the values for breath and height:"<<endl;
       cin>> a; cin>> b;
    }
 
       floatarea_r()
       {
       float arear = (a*b);
       return arear;
       }
 
       floatarea_t()
       {
       floatareat = (a*b) / 2;
       returnareat;
       }
 
       voidgetvalues(int x, int y)
       {
       x=a;
       y=b;
       }
 
};
 
voiddisp(int, int, float);
 
int main()
{
       shapevar;
       intm,n;
       stringt,r,e,c;
 
       cout<<"Enter your choice (T) for Triangle and (R) for Rectangle and (E) to Exit:"<<endl;
       getline (cin,c);
      
       do
       {
             
              if (c==t)
              { var.setvalues(); var.area_t(); var.getvalues(m,n); disp(m,n, var.area_t());}
      
 
       elseif (c==r)
              {var.setvalues(); var.area_r(); var.getvalues(m,n); disp(m,n, var.area_r()); }
      
 
       } while (c!=e);
 
       system("PAUSE");
 
return 0;
}
 
voiddisp(inta,int b, float c)
{
       cout<<"The values entered are:"<<endl;
cout<< a << b;
       cout<<"The area is:"<<endl;
       cout<< c;
}

Creating a header file and defining its function in another file is easy. I need help regarding the logic which is to be made.

Firstly, there are issues with your spaces.

As for making multiple files, what you make in the .h files are interfaces, not definitions. If you remove all the definitions, you'll be left with a clean list of functions from which you can guess what a class does. In your case, it'd be something like.

class shape
{
private:
int a,b;
public:
shape();
float area_r();
float area_t();
void getValues(); //It's better to use a constructor for this

}'

Then you make the defintions in the .CPP file. And you need to use header guards(#ifndef and #def ), especially if you there is more than 1 file. In the .cpp file, you'll define

shape::shape() {\\stuff}

float shape::area_r(){\\definition}

float shape::area_t(){\\definition}

If your code is working in a single file, cut-pasting the definitions to the .cpp file shouldn't be an issue, make sure to include the .h file at the top. You might have to include iostream and using namespace std again as well depending on the situation.