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Komok [63]
3 years ago
15

Which of the following meanings can a $ character assume within a regular expression? (can have more than 1 answer)

Computers and Technology
1 answer:
denis-greek [22]3 years ago
7 0

Answer:

a. A literal dollar sign .

b. Shell variable syntax.

c. End-of-line anchor for pattern matching.

Explanation:

There are three answers to this question among the given options.

When a regular expression is quoted single, the $ character can act in one of two ways. end of line anchor for pattern matching.Elsewhere it acts as a literal dollar sign.

When a double quoted regular expression is there, the $ character is treated as a shell variable syntax.

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Write a Scheme function called "sum" which takes an input function func and a nonnegative number n and outputs the value
solong [7]

Answer:

function sum(number) {

      if (number == 1) {

             return 1;

      }

      return number + sum(number -1);

}

Explanation:

This is a recursive function, it means that is a function that calls itself for example: if you call the function with sum(5) the process is :

sum(5)

   |______ 5 + sum(4)

                           |_______ 4 + sum(3)

                                                       |______ 3 + sum(2)

                                                                                   |_____2 + sum(1)

                                                                                                        |_____ 1

                                                                                                 

the result is 1+2+3+4+5 = 15

7 0
3 years ago
Write a c program to count the total number of commented characters and words in a c file taking both types of c file comments (
Tanzania [10]

#include<stdio.h>

#include<stdlib.h>

int comment1(FILE *fp)

{

   char ch;

   int count=0;

   while(fscanf(fp,"%c",&ch)!=EOF)

   {

       if(ch=='\n')

       {

           return count;

       }

       count++;

   }

   return count;

}

int comment2(FILE *fp)

{

   char ch;

   int count=0;

   while(fscanf(fp,"%c",&ch)!=EOF)

   {

       if(ch=='*')

       {

           fscanf(fp,"%c",&ch);

           if(ch=='/')

           {

               return count;

           }

           count++;

       }

       count++;

   }

   return 0;

}

int main()

{

   printf("Enter the file name:");

   char s[1000],ch,ch1;

   scanf("%s",s);

   FILE*fp;

   fp = fopen(s,"r");

   int count=0;

   while(fscanf(fp,"%c",&ch)!=EOF)

   {

       if(ch=='\"')

       {

           while(fscanf(fp,"%c",&ch)!=EOF)

           {

               if(ch=='\"')

               {

                   break;

               }

               if(ch=='\\')

               {

                   fscanf(fp,"%c",&ch);

               }

           }

       }

       else if(ch=='/')

       {

           fscanf(fp,"%c",&ch);

           if(ch=='/')

           {

               count += comment1(fp);

           }

           else if(ch=='*')

           {

               count += comment2(fp);

           }

       }

   }

   printf("%d\n",count);

   return 0;    

}

3 0
3 years ago
Read 2 more answers
Create a class named Employee. The class must contain member variables for the employee name and salary. It should contain gette
Lerok [7]

Answer:

Explanation:

The following code was written in Java. The code contains the Employee class which contains the two variables (name, salary), the constructor, getter and setter methods for both variables, and an overwritten toString method. It also contains a tester class with the main method inside and creates a Employee object and initializes it. Then it calls the toString method. The output can be seen in the attached image below. Due to technical difficulties I have added the code as a txt file below.

8 0
3 years ago
A_________is an orderly collection of fact &amp; information.
sammy [17]

Answer:

C. Database

Explanation:

4 0
3 years ago
Write a Python function prime_generator that takes as argument positive integers s and e (where s
nika2105 [10]

Answer:

def prime_generator(s, e):

   for number in range(s, e+1):      

       if number > 1:

          for i in range(2, number):

              if (number % i) == 0:

                  break

          else:

               print(number)

   

prime_generator(6,17)

Explanation:

I believe you want to ask the prime numbers between s and e.

- Initialize a for loop that iterates from s to e

- Check if the number is greater than 1. If it is, go inside another for loop that iterates from 2 to that number. If the module of that number to any number in range (from 2 to that number) is equal to 0, this means the number is not a prime number. If the module is not equal to zero, then it is a prime number. Print the number

6 0
3 years ago
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