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