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Displaying  Source Code(s)  
 

 
Misc. Programs In C++

--------------------------------------------------------------------------------

Description : These programs are actually simple but great in use , I want
to say thanks to Mr.Amlapure Gajanan & Mr.Pawar Sharad for guioding me
regard to these programs
These programs are actully serves the categeory Garbage which are flexible
in nature..
Shailesh & Nirgun

//This is a program for copy desired file.
//You can use this program as garbage with ur program.

#include <iostream.h>
#include <fstream.h>
#include <process.h>
#include <conio.h>
void main()
{
ifstream infile;
ofstream outfile;
ofstream printer;
char filename[20];
cout<<"
Enter the desired file to copy.";
cin>>filename;
infile.open(filename,ios::nocreate);
if(!infile)
{
cout<<"Input file can not be opened."<<endl;
exit(1);
}
outfile.open("copy");
if(!outfile)
{
cout<<"Output file can not be opened.";
exit(1);
}
printer.open("PRN");
if(!printer)
{
cout<<"There is a problem with printer.";
getch();
exit(1);
}
cout<<"All files have been opened.";
char ch;
outfile<<"This is the begining of the file.";
while(infile.get(ch))
{
outfile.put(ch);
}
infile.close();
outfile.close();
getch();
}

// This is How a Header file is creatred and used.
// Program by Shailesh And Nirgun...
#include <iostream.h>
#include <string.h>
class college
{
private:
char collegename[80];
public:
college()
{
strcpy(collegename,"S.T.B.E.Collage of Engg. Tuljapur,Dist.
Osmanabad.");
}
char * getcollegename()
{
return collegename;
}
};
class student:public college
{
private:
char studname[40];
char address[80];
public:
student(char *name)
{
strcpy(studname,name);
}
char * studentname()
{
return studname;
}
setaddress(char *add)
{
strcpy(address,add);
}
char * studentaddress()
{
return address;
}
};


#include <d:cppcollege.h>
#include <conio.h>
void main()
{
clrscr();
studentfile student;
student.studentname("Shailesh");
getch();
};








#include <iostream.h>
#include <conio.h>
#include <stdarg.h>
//Declare a function with one required parameter
void display(int number,...);
void main()
{
int index=5;
int one=1,two=2;
clrscr();
display(one,index);
getch();
}
void display(int number,...)
{
va_list para;
va_start(para,number);
cout<<"The parameters are:"<<endl;
cout<<va_arg(para,int)<<" ";//extract a parameter
}



#include<stdio.h>
#include<conio.h>
void main()
{
clrscr();
printf("%d
%d",sizeof(NULL),sizeof(""));
getch();
}



#include<stdio.h>
#include<conio.h>
void main()
{
int a=10,b=20;
clrscr();
swapv(&a,&b);
printf("
A=%d",a);
printf("
B=%d",b);
getch();
}

swapv(int *x,int *y)
{
int t;
t=*x;
*x=*y;
*y=t;
return;
}




/* This is the program using pointer to swap values */

#include<stdio.h>
#include<conio.h>
void main()
{
int a=10,b=20;
clrscr();
nilesh(a,b);
printf("
A=%d",a);
printf("
B=%d",b);
getch();
}

nilesh(x,y)
{
int t;
t=x;
x=y;
y=t;
printf("
X=%d",x);
printf("
Y=%d",y);
return;
}

 

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