10. C PROGRAMMING LAB | Check Now

C PROGRAMMING LAB –10] Write functions to implement string operations such as compare, concatenate, string length. Convince the parameter passing techniques.


Algorithm

  • Step-1: Start
  • Step-2: Press 1 – Compare, 2 – Concatenate, 3-length of string, if press 1 than goto step 3, if press step 2 then goto step 4, if press 3 then goto step 5
  • Step-3: Read the string1 and string2 and cojmparsion function by using strcmp built in unction is used. If res = 0 then print both strings are equal, otherwise print strints are not equal and than goto the step 4
  • Step-4: Read String1 and sring2 and find concatenation of two strings using string handling function strcat() and display sring and return back to main fuctions.
  • Step-5: Read string1 and call function to find the length of string by calling function length ( *string)
  • Step-6: if digit=1 then gtoto step 2 else goto step 7
  • Step-7: Stop

C PROGRAMMING – Flow Chart

C PROGRAMMING- STRING OPERATIONS FLOW CHART VTULOOP
C PROGRAMMING- STRING OPERATIONS FLOW CHART VTULOOP

Program -10 source code

#include<stdio.h>
#include<string.h>
void compare(char [ ],char [ ]); .
void concat(char [ ],char [ ]); 
void length(char *[ ]); 
void main( )
{ 
int n,digit; 
char str1[10],str2[10];
do 
{ 
printf("press 1-compare 2-concatenate 3-length of string");
printf("\n enter your choice="); 
scanf("%d",&n); 
switch(n) 
{
case 1:printf("enter first string=");
scanf("%s",str1); 
printf("enter second string="); 
scanf("%s",str2); 
compare(str1,str2);
break;
case 2: printf("enter first string="); 
scanf("%s",str1); 
printf("enter second string="); 
scanf("%s",str2); 
concat(str1,str2);
break; 
case 3:printf("enter string=");
scanf("%s",str1);
length(&str1);
break;
default: printf("wrong choice");
break;
} 
printf("\n Do you want to continue(1/0)? ");
scanf("%d", &digit);
}while(digit==1); 
}
void compare(char str1[ ],char str2[ ])
{ 
int i; 
i=strcmp(str1,str2);
if(i==0) 
printf("strings are equal\n "); 
else 
printf("string are not equal\n"); 
} 
void concat(char str1[ ],char str2[ ]) 
{ 
strcat(str1,str2); 
printf("concatenate string=%s",str1); 
} 
void length(char *str1[ ]) 
{ 
int len;
len=strlen(str1); 
printf("the length of string=%d",len); 
}

C PROGRAMMING -Viva Questions

1] What is a string?

2] How to declare string?

3] What are the string manipulation functions?

4] What is gets( ) and puts( ) function in string?

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