C Prog - Strings
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This document contains 14 programs demonstrating various string manipulation functions in C programming such as printf, gets, strlen, strcpy, strncpy, strcmp, strupr, strcat, strrev. Each program is accompanied by its output. The programs are organized by Vinay Arora of Thapar University to teach students how to use basic string handling functions in C.
![Program - 1
#include<stdio.h>
#include<conio.h>
void main()
{
char a[]="CIVIL DEPARTMENT";
int i=0;
clrscr();
for(i=0;i<=15;i++)
{
printf("%c",a[i]);
}
getch();
}
Vinay Arora
CSED](https://image.slidesharecdn.com/7-strings-120421035922-phpapp01/85/C-Prog-Strings-2-320.jpg)
![Program - 2
#include<stdio.h>
#include<conio.h>
void main()
{
char a[30]="CIVIL DEPARTMENT";
int i=0;
clrscr();
while(a[i]!='0')
{
printf("%c",a[i]);
i++;
}
getch();
}
Vinay Arora
CSED](https://image.slidesharecdn.com/7-strings-120421035922-phpapp01/85/C-Prog-Strings-4-320.jpg)
![Program - 3
#include<stdio.h>
#include<conio.h>
void main()
{
char a[]="CIVIL DEPARTMENT";
clrscr();
printf("%s",a);
getch();
}
Vinay Arora
CSED](https://image.slidesharecdn.com/7-strings-120421035922-phpapp01/85/C-Prog-Strings-6-320.jpg)
![Program - 4
#include<stdio.h>
#include<conio.h>
void main()
{
char a1[]={'C','I','V','I','L'};
char a2[]={'C','I','V','I','L','0'};
char a3[6]={'C','I','V','I','L'};
clrscr();
printf("n%s",a1);
printf("n%s",a2);
printf("n%s",a3);
getch();
}
Vinay Arora
CSED](https://image.slidesharecdn.com/7-strings-120421035922-phpapp01/85/C-Prog-Strings-8-320.jpg)
![Program - 5
#include<stdio.h>
#include<conio.h>
void main()
{
char a1[6]={'C','I','V','I','L'};
clrscr();
printf("n%s",a1);
printf("n%.3s",a1);
printf("n%-6.2s",a1);
printf("n%6.2s",a1);
printf("n%10s",a1);
printf("n%5s",a1);
getch();
}
Vinay Arora
CSED](https://image.slidesharecdn.com/7-strings-120421035922-phpapp01/85/C-Prog-Strings-10-320.jpg)
![Program - 6
#include<stdio.h>
#include<conio.h>
void main()
{
char text[20];
int length;
clrscr();
printf("Type the Text belown");
gets(text);
length=strlen(text);
printf("Length of string = %d",length);
getch();
}
Vinay Arora
CSED](https://image.slidesharecdn.com/7-strings-120421035922-phpapp01/85/C-Prog-Strings-12-320.jpg)
![Program - 7
#include<stdio.h>
#include<conio.h> getch();
void main()
{ }
char str1[20], str2[20];
int length;
clrscr();
printf("Enter 1st stringn");
gets(str1);
printf("Enter 2nd stringn");
gets(str2);
printf("n1st String is --->t%s",str1);
printf("n2nd String is --->t%s",str2);
strcpy(str1,str2);
printf("nn1st String after strcpy() is --->t%s",str1);
Vinay Arora
CSED](https://image.slidesharecdn.com/7-strings-120421035922-phpapp01/85/C-Prog-Strings-14-320.jpg)
![Program - 8
#include<stdio.h>
#include<conio.h> getch();
void main()
{ }
char str1[20], str2[20];
int length;
clrscr();
printf("Enter 1st stringn");
gets(str1);
printf("Enter 2nd stringn");
gets(str2);
printf("n1st String is --->t%s",str1);
printf("n2nd String is --->t%s",str2);
strncpy(str1,str2,2);
printf("nn1st String after strcpy() is --->t%s",str1);
Vinay Arora
CSED](https://image.slidesharecdn.com/7-strings-120421035922-phpapp01/85/C-Prog-Strings-16-320.jpg)
![Program - 9
#include<stdio.h>
#include<conio.h> getch();
void main()
{ }
char str1[20], str2[20];
int result;
clrscr();
printf("Enter 1st stringn");
gets(str1);
printf("Enter 2nd stringn");
gets(str2);
printf("n1st String is --->t%s",str1);
printf("n2nd String is --->t%s",str2);
result=strcmp(str1,str2);
//In case of match result will be ZERO otherwise NON ZERO
printf("nnResult after Comparing is %d",result);
Vinay Arora
CSED](https://image.slidesharecdn.com/7-strings-120421035922-phpapp01/85/C-Prog-Strings-18-320.jpg)
![Program - 10
#include<stdio.h>
#include<conio.h>
void main()
{
char str1[20];
int length;
clrscr();
printf("Enter 1st stringn");
gets(str1);
printf("n1st String is --->t%s",str1);
strupr(str1);
printf("nnString after strupr() is --->t%s",str1);
getch();
}
Vinay Arora
CSED](https://image.slidesharecdn.com/7-strings-120421035922-phpapp01/85/C-Prog-Strings-21-320.jpg)
![Program - 11
#include<stdio.h>
#include<conio.h> getch();
void main()
{ }
char str1[20],str2[20];
int length;
clrscr();
printf("Enter 1st stringn");
gets(str1);
printf("Enter 2nd stringn");
gets(str2);
printf("n1st String is --->t%s",str1);
printf("n2nd String is --->t%s",str2);
strcat(str1,str2);
printf("nnString after strcat() is --->t%s",str1);
Vinay Arora
CSED](https://image.slidesharecdn.com/7-strings-120421035922-phpapp01/85/C-Prog-Strings-23-320.jpg)
![Program - 12
#include<stdio.h>
#include<conio.h> getch();
void main()
{ }
char str1[20],str2[20];
int length;
clrscr();
printf("Enter 1st stringn");
gets(str1);
printf("Enter 2nd stringn");
gets(str2);
printf("n1st String is --->t%s",str1);
printf("n2nd String is --->t%s",str2);
strcat(str1," ");
strcat(str1,str2);
printf("nnString after strcat() is --->t%s",str1);
Vinay Arora
CSED](https://image.slidesharecdn.com/7-strings-120421035922-phpapp01/85/C-Prog-Strings-25-320.jpg)
![Program - 13
#include<stdio.h>
#include<conio.h>
void main()
{
char str1[20];
int length;
clrscr();
printf("Enter 1st stringn");
gets(str1);
printf("n1st String is --->t%s",str1);
strrev(str1);
printf("nnString after strrev() is --->t%s",str1);
getch();
}
Vinay Arora
CSED](https://image.slidesharecdn.com/7-strings-120421035922-phpapp01/85/C-Prog-Strings-27-320.jpg)
![Program - 14
#include<stdio.h> printf("n1st String is --->t%s",str1);
#include<conio.h>
void main() strrev(str1);
{
char c,str1[30]; printf("nnString after strrev() is --->t%s",str1);
int length,i=0;
clrscr(); getch();
}
printf("Enter 1st stringn");
c=getchar();
while(c!='@')
{
str1[i]=c;
i++;
c=getchar();
}
Vinay Arora
CSED](https://image.slidesharecdn.com/7-strings-120421035922-phpapp01/85/C-Prog-Strings-29-320.jpg)
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C Prog - Strings
- 1. C Programming - Strings Organized By: Vinay Arora Assistant Professor, CSED Thapar University, Patiala
- 2. Program - 1 #include<stdio.h> #include<conio.h> void main() { char a[]="CIVIL DEPARTMENT"; int i=0; clrscr(); for(i=0;i<=15;i++) { printf("%c",a[i]); } getch(); } Vinay Arora CSED
- 3. Program – 1 (output) Vinay Arora CSED
- 4. Program - 2 #include<stdio.h> #include<conio.h> void main() { char a[30]="CIVIL DEPARTMENT"; int i=0; clrscr(); while(a[i]!='0') { printf("%c",a[i]); i++; } getch(); } Vinay Arora CSED
- 5. Program – 2 (output) Vinay Arora CSED
- 6. Program - 3 #include<stdio.h> #include<conio.h> void main() { char a[]="CIVIL DEPARTMENT"; clrscr(); printf("%s",a); getch(); } Vinay Arora CSED
- 7. Program – 3 (output) Vinay Arora CSED
- 8. Program - 4 #include<stdio.h> #include<conio.h> void main() { char a1[]={'C','I','V','I','L'}; char a2[]={'C','I','V','I','L','0'}; char a3[6]={'C','I','V','I','L'}; clrscr(); printf("n%s",a1); printf("n%s",a2); printf("n%s",a3); getch(); } Vinay Arora CSED
- 9. Program – 4 (output) Vinay Arora CSED
- 10. Program - 5 #include<stdio.h> #include<conio.h> void main() { char a1[6]={'C','I','V','I','L'}; clrscr(); printf("n%s",a1); printf("n%.3s",a1); printf("n%-6.2s",a1); printf("n%6.2s",a1); printf("n%10s",a1); printf("n%5s",a1); getch(); } Vinay Arora CSED
- 11. Program – 5 (output) Vinay Arora CSED
- 12. Program - 6 #include<stdio.h> #include<conio.h> void main() { char text[20]; int length; clrscr(); printf("Type the Text belown"); gets(text); length=strlen(text); printf("Length of string = %d",length); getch(); } Vinay Arora CSED
- 13. Program – 6 (output) Vinay Arora CSED
- 14. Program - 7 #include<stdio.h> #include<conio.h> getch(); void main() { } char str1[20], str2[20]; int length; clrscr(); printf("Enter 1st stringn"); gets(str1); printf("Enter 2nd stringn"); gets(str2); printf("n1st String is --->t%s",str1); printf("n2nd String is --->t%s",str2); strcpy(str1,str2); printf("nn1st String after strcpy() is --->t%s",str1); Vinay Arora CSED
- 15. Program – 7 (output) Vinay Arora CSED
- 16. Program - 8 #include<stdio.h> #include<conio.h> getch(); void main() { } char str1[20], str2[20]; int length; clrscr(); printf("Enter 1st stringn"); gets(str1); printf("Enter 2nd stringn"); gets(str2); printf("n1st String is --->t%s",str1); printf("n2nd String is --->t%s",str2); strncpy(str1,str2,2); printf("nn1st String after strcpy() is --->t%s",str1); Vinay Arora CSED
- 17. Program – 8 (output) Vinay Arora CSED
- 18. Program - 9 #include<stdio.h> #include<conio.h> getch(); void main() { } char str1[20], str2[20]; int result; clrscr(); printf("Enter 1st stringn"); gets(str1); printf("Enter 2nd stringn"); gets(str2); printf("n1st String is --->t%s",str1); printf("n2nd String is --->t%s",str2); result=strcmp(str1,str2); //In case of match result will be ZERO otherwise NON ZERO printf("nnResult after Comparing is %d",result); Vinay Arora CSED
- 19. Program – 9 (output) Vinay Arora CSED
- 20. Program – 9 (output) Vinay Arora CSED
- 21. Program - 10 #include<stdio.h> #include<conio.h> void main() { char str1[20]; int length; clrscr(); printf("Enter 1st stringn"); gets(str1); printf("n1st String is --->t%s",str1); strupr(str1); printf("nnString after strupr() is --->t%s",str1); getch(); } Vinay Arora CSED
- 22. Program – 10 (output) Vinay Arora CSED
- 23. Program - 11 #include<stdio.h> #include<conio.h> getch(); void main() { } char str1[20],str2[20]; int length; clrscr(); printf("Enter 1st stringn"); gets(str1); printf("Enter 2nd stringn"); gets(str2); printf("n1st String is --->t%s",str1); printf("n2nd String is --->t%s",str2); strcat(str1,str2); printf("nnString after strcat() is --->t%s",str1); Vinay Arora CSED
- 24. Program – 11 (output) Vinay Arora CSED
- 25. Program - 12 #include<stdio.h> #include<conio.h> getch(); void main() { } char str1[20],str2[20]; int length; clrscr(); printf("Enter 1st stringn"); gets(str1); printf("Enter 2nd stringn"); gets(str2); printf("n1st String is --->t%s",str1); printf("n2nd String is --->t%s",str2); strcat(str1," "); strcat(str1,str2); printf("nnString after strcat() is --->t%s",str1); Vinay Arora CSED
- 26. Program – 12 (output) Vinay Arora CSED
- 27. Program - 13 #include<stdio.h> #include<conio.h> void main() { char str1[20]; int length; clrscr(); printf("Enter 1st stringn"); gets(str1); printf("n1st String is --->t%s",str1); strrev(str1); printf("nnString after strrev() is --->t%s",str1); getch(); } Vinay Arora CSED
- 28. Program – 13 (output) Vinay Arora CSED
- 29. Program - 14 #include<stdio.h> printf("n1st String is --->t%s",str1); #include<conio.h> void main() strrev(str1); { char c,str1[30]; printf("nnString after strrev() is --->t%s",str1); int length,i=0; clrscr(); getch(); } printf("Enter 1st stringn"); c=getchar(); while(c!='@') { str1[i]=c; i++; c=getchar(); } Vinay Arora CSED
- 30. Program – 14 (output) Vinay Arora CSED
- 31. Thnx… Vinay Arora CSED