Question

Question 23 Not yet answered Write an algorithm that reads a file of studentsNames. We want to determine whether or not the name Adam Brown is within this file. Display an appropriate message to indicate whether the name was found or not found. For example, "The name Adam Brown is in the file", "error: Adam Brown not found" [10 marks Marted out of 10.00 p Flag question 4 B 1 dtv A

Answer 1

Algorithm:

1. Start

2. open the file studentsNames in read mode.

3. parse through the file line by line and compare it to the name

4. if the name is found print "the name is found" else print "not found".

5. close the file.

6. Stop

Name.c:

#include<stdio.h>
#include<string.h>
int main(int argc, char * argv[]) {
FILE * fp;
int flag = 0;
int i=0;
char * line = NULL;
ssize_t read;
size_t len = 0;
char *name = "Adam Brown";
fp = fopen("studentsNames", "r");
if (fp == NULL) {
printf("Could not open file\n");
return -1;
}
while ((read = getline( & line, & len, fp)) != -1) {
i=0;
while(line[i] != '\0')
   {
       if(line[i] == '\n')
       {
           line[i] = '\0';
        }
        i++;
   }
if(strcmp(line,name)==0) {
flag = 1;
printf("The name Adam Brown is in the file\n");
break;
}
}

  fclose(fp);
if(flag == 0)
printf("error: Adam Brown not found\n");
return 0;

}

Output:

shyam@shyam: -/Desktop/Chegg/ shyam@shyam:-/Desktop/Chegg/c$ cat studentNames Vishnu Prasad Tom Cruise Adam Brown shyam@shyam:-/Desktop/Chegg/c$ gcc Name.c shyam@shyam:-/Desktop/Chegg/c$ ./a.out The name Adam Brown is in the file shyam@shyam:-/Desktop/Chegg/c$ cat studentNames Vishnu Prasad Tom Cruise Rober Downey shyam@shyam:-/Desktop/Chegg/c$ gcc Name.c shyam@shyam:-/Desktop/Chegg/c$ ./a.out error: Adam Brown not found shyam@shyam:-/Desktop/Chegg/c$ |