Question 30Consider the following procedures for string manipulation.Procedure CallExplanationconcat(strl,Returns a single string consisting of strl followed by str2. For example, concat("key", "board") returns "keyboard".str2)Subprefix(str,Returns the first length characters of str or str if length is greater than the number of characters in str. For example, prefix("delivery", 3) returns "del" and%3Dlength)prefix("delivery", 100) returns "delivery".The variable initials is to be assigned a string consisting of the first letter of the string firstName followed by the first letter of the string lastName. Which of the following assigns the correct string to initials?initials + concat (prefix(firstName, 1), prefix(lastName, 1) )Вinitials + concat (prefix(firstName, 2), prefix(lastName, 2) )initials + prefix(concat(firstName, lastName), 1)initials + prefix(concat(firstName, lastName), 2)>

A is the answer. initials <- concat(prefix(firstName,1),prefix(lastName,1))

Procedure Call Explanation concat (str1, Returns a single string consisting of strl followed by str2. For example, concat ("key", "board") returns "keyboard". str2) Returns the first length characters of str or str if length is greater than the number of characters in str. For example, prefix("delivery", 3) returns del" and prefix("delivery", 100) returns "delivery". prefix(str, length) The variable initials is to be assigned a string consisting of the first letter of the string firstName followed by the first letter of the string lastName. Which of the following assigns the correct string to initials?

Procedure Call Explanation concat (str1, Returns a single string consisting of strl followed by str2. For example, concat ("key", "board") returns "keyboard". str2) Returns the first length characters of str or str if length is greater than the number of characters in str. For example, prefix("delivery", 3) returns del" and prefix("delivery", 100) returns "delivery". prefix(str, length) The variable initials is to be assigned a string consisting of the first letter of the string firstName followed by the first letter of the string lastName. Which of the following assigns the correct string to initials?

C++ Programming: From Problem Analysis to Program Design

8th Edition

ISBN:9781337102087

Author:D. S. Malik

Publisher:D. S. Malik

Chapter7: User-defined Simple Data Types, Namespaces, And The String Type

Section: Chapter Questions

Problem 3PE

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