C Programming: Strings and Functions
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Questions and Answers

What is the purpose of the strlen function in the string.h library?

  • To return the length of a string (correct)
  • To concatenate two strings
  • To input a string from the user
  • To copy a string into another string

    • What is the correct format specifier to output a string in C?

  • %d
  • %f
  • %s (correct)
  • %c

    • What is the purpose of the puts function in the string.h library?

  • To copy a string into another string
  • To concatenate two strings
  • To display a string (correct)
  • To input a string from the user

    • How do you declare a variable of type string in C?

    <p>Use an array of char</p> Signup and view all the answers

    What is the purpose of the strcpy function in the string.h library?

    <p>To copy a string into another string</p> Signup and view all the answers

    What is the purpose of the strcat function in the string.h library?

    <p>To concatenate two strings</p> Signup and view all the answers

    What is the purpose of the gets() function in the given C program?

    <p>To input the value of a string</p> Signup and view all the answers

    What is the output of the puts() function when used with a string variable?

    <p>The value of the string itself</p> Signup and view all the answers

    What is the purpose of the strcpy() function in the given C program?

    <p>To copy the value of one string to another</p> Signup and view all the answers

    What is the purpose of the strcat() function in the given C program?

    <p>To concatenate two strings</p> Signup and view all the answers

    What is the output of the strlen() function when used with a string variable?

    <p>The length of the string</p> Signup and view all the answers

    What is the condition for displaying 'str1 is Long String' in the given exercise?

    <p>If the length of str1 is greater than 15</p> Signup and view all the answers

    Which header file is used to perform mathematical operations in C programming?

    <p>math.h</p> Signup and view all the answers

    What is the purpose of the scanf() function in the given C program?

    <p>To input the value of an integer</p> Signup and view all the answers

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