1. COPYRIGHT@ ENGR.SABA MUGHAL FROM COMPUTER SYSTEM DEPARTMENT
C++ CODES PART#07
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2. COPYRIGHT@ ENGR.SABA MUGHAL FROM COMPUTER SYSTEM DEPARTMENT
USING IF STATEMENT
#include<constream.h> void main() {clrscr(); int a; cout<<"input a number:"; cin>>a;
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3. COPYRIGHT@ ENGR.SABA MUGHAL FROM COMPUTER SYSTEM DEPARTMENT
Continue…
if(a>100)
cout<<"that number is greater than 100\n";
getch();}
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4. COPYRIGHT@ ENGR.SABA MUGHAL FROM COMPUTER SYSTEM DEPARTMENT
Output….
ENGR.SABA MUGHAL FROM COMPUTER SYSTEM DEPARTMENT

5. COPYRIGHT@ ENGR.SABA MUGHAL FROM COMPUTER SYSTEM DEPARTMENT
Using if statement
#include<constream.h> void main() {clrscr(); int a; cout<<"enter a number:"; cin>>a; if(a>100)
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6. COPYRIGHT@ ENGR.SABA MUGHAL FROM COMPUTER SYSTEM DEPARTMENT
Continue…
{cout<<"the number "<<a;
cout<<"is greater than 100\n"; }
getch();}
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7. COPYRIGHT@ ENGR.SABA MUGHAL FROM COMPUTER SYSTEM DEPARTMENT
OUTPUT….
ENGR.SABA MUGHAL FROM COMPUTER SYSTEM DEPARTMENT

8. COPYRIGHT@ ENGR.SABA MUGHAL FROM COMPUTER SYSTEM DEPARTMENT
If else statement
#include<constream.h>
void main() {
clrscr();
int x;
cout<<"\n enter a number:";
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9. COPYRIGHT@ ENGR.SABA MUGHAL FROM COMPUTER SYSTEM DEPARTMENT
Continue…
cin>>x;
if(x>100)
cout<<"that number is greater than 100\n";
else
cout<<"that number is not greater than 100\n";
getch(); }
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10. COPYRIGHT@ ENGR.SABA MUGHAL FROM COMPUTER SYSTEM DEPARTMENT
Output….
ENGR.SABA MUGHAL FROM COMPUTER SYSTEM DEPARTMENT

11. Using library function exit()
#include<constream.h> #include<process.h>// used for exit() void main() {clrscr(); int a,b; cout<<"\n enter any integer values of a and b:";
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12. COPYRIGHT@ ENGR.SABA MUGHAL FROM COMPUTER SYSTEM DEPARTMENT
Continue….
cin>>a>>b;
clrscr();
if(a%b==0)
cout<<a<<"is proper divisible of"<<b;
else
exit(0);
getch(); }
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13. COPYRIGHT@ ENGR.SABA MUGHAL FROM COMPUTER SYSTEM DEPARTMENT
Output……….
ENGR.SABA MUGHAL FROM COMPUTER SYSTEM DEPARTMENT

14. COPYRIGHT@ ENGR.SABA MUGHAL FROM COMPUTER SYSTEM DEPARTMENT
Switch () statement
#include<constream.h> void main () {clrscr(); char ch; cin>>ch; switch(ch){ case 'a':
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15. COPYRIGHT@ ENGR.SABA MUGHAL FROM COMPUTER SYSTEM DEPARTMENT
Continue…
case 'e':
case 'i':
case 'o':
case 'u':
cout<<"vowel";
default:cout<<" alphabet";}
getch();}
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16. COPYRIGHT@ ENGR.SABA MUGHAL FROM COMPUTER SYSTEM DEPARTMENT
Output…
ENGR.SABA MUGHAL FROM COMPUTER SYSTEM DEPARTMENT

17. COPYRIGHT@ ENGR.SABA MUGHAL FROM COMPUTER SYSTEM DEPARTMENT
Conditional operator
#include<constream.h> void main() {clrscr(); float per; cout<<"\enter the obtained percentage:"; cin>>per; cout<<(per>=60?"\n pass":"\nfail"); getch();}
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18. COPYRIGHT@ ENGR.SABA MUGHAL FROM COMPUTER SYSTEM DEPARTMENT
Output…..
ENGR.SABA MUGHAL FROM COMPUTER SYSTEM DEPARTMENT

19. COPYRIGHT@ ENGR.SABA MUGHAL FROM COMPUTER SYSTEM DEPARTMENT
ctype.h
Character handling This header declares a set of functions to classify and transform individual characters.
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20. Example of switch statement using ctype.h
#include <constream.h> #include <ctype.h> void main() { clrscr(); char ch; cout << "Enter Any Alphabat !";
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21. COPYRIGHT@ ENGR.SABA MUGHAL FROM COMPUTER SYSTEM DEPARTMENT
Continue…
ch = getche(); if(isalpha(ch)) { ch = toupper(ch); switch(ch) { case 'A': case 'E':
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22. COPYRIGHT@ ENGR.SABA MUGHAL FROM COMPUTER SYSTEM DEPARTMENT
Continue..
case 'I': case 'O': case 'U': cout <<"\nThis is a vowel"; break;
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23. COPYRIGHT@ ENGR.SABA MUGHAL FROM COMPUTER SYSTEM DEPARTMENT
Continue…
default:
cout <<"\nThis is a consonant"; }
else
cout <<"\nInvalid Entry";
getch();
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24. COPYRIGHT@ ENGR.SABA MUGHAL FROM COMPUTER SYSTEM DEPARTMENT
Output…
ENGR.SABA MUGHAL FROM COMPUTER SYSTEM DEPARTMENT

25. Logical OR oerator (||)
#include<constream.h> void main() {char a; clrscr(); cin>>a; if(a==int('a')||a==int('e')||a==int('i')||a==int('0')||a==int('u'))
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26. COPYRIGHT@ ENGR.SABA MUGHAL FROM COMPUTER SYSTEM DEPARTMENT
Continue….
{cout<<endl<<"vowel";}
else
cout<<endl<<"consonant";
getch();}
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27. COPYRIGHT@ ENGR.SABA MUGHAL FROM COMPUTER SYSTEM DEPARTMENT
Output….
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28. COPYRIGHT@ ENGR.SABA MUGHAL FROM COMPUTER SYSTEM DEPARTMENT
Continue statement
#include<constream.h> void main() {clrscr(); long dividend,divisor; char ch; do{
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29. COPYRIGHT@ ENGR.SABA MUGHAL FROM COMPUTER SYSTEM DEPARTMENT
CONTINUE….
cout<<"enter dividend:"; cin>>dividend; cout<<"enter divisor:"; cin>>divisor; if(divisor==0) {cout<<"illegal divisor \n";
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30. COPYRIGHT@ ENGR.SABA MUGHAL FROM COMPUTER SYSTEM DEPARTMENT
CONTINUE…
continue; }
cout<<"quotient is"<<dividend/divisor;
cout<<",remainder is"<<dividend%divisor;
cout<<"\n do another?(y/n):";
cin>>ch;
while(ch!='n');
getch();}
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31. COPYRIGHT@ ENGR.SABA MUGHAL FROM COMPUTER SYSTEM DEPARTMENT
Output….
ENGR.SABA MUGHAL FROM COMPUTER SYSTEM DEPARTMENT

32. COPYRIGHT@ ENGR.SABA MUGHAL FROM COMPUTER SYSTEM DEPARTMENT
NICE WORDINGS……..
Jab Tum dunya ki Muflisi se tang aa jao aur Rizaq ka koi rasta na niklay to Sadqa day ker Allah se tajaarat kiya kero.
ENGR.SABA MUGHAL FROM COMPUTER SYSTEM DEPARTMENT