and then display just the initials. For example, if the input is John Peter Doe, the initials JPDmust

be displayed.

Member functions of the stringclass to manipulate the values of stringobjects are provided on the

next page.

QUESTION $117$ MARKS

COS$1511$

Oct$/$Nov $2023$

$9$

$[$TURN OVER$]$

Function signature Description

int size$()$ Returns the size $($i$.$e$.$ length$)$ of a string object.

string substr$($int$,$int$)$ Returns a substring of a string object. The first parameter

specifies the starting position $($i$.$e$.$ the position from which

the substring should be copied$)$ and the second parameter

specifies how long the substring should be $($i$.$e$.$ how many

characters should be copied$).$ The second parameter may be

omitted, in which case the sub$-$string consisting of all the

characters from the starting position $($specified by the first

and only parameter$)$ to the end of the string are returned.

int find$($string$,$int$)$ Returns the position of a string $($specified as the first

parameter$)$ within a string object. The second parameter is

optional, and can be used to specify where the search has to

be commenced. If omitted, the search commences at the

beginning of the string object. If the string being sought is not

found, $-1$ is returned.

void insert$($int$,$string$)$ Inserts a string $($specified as the second parameter$)$ into a

string object at a particular position $($specified as the first

parameter$)$

void erase$($int$,$int$)$ Erases a substring from a string object. The substring that is

to be erased is determined by the two parameters: from the

position specified by the first parameter, as many characters

as specified by the second parameter

void replace$($int$,$int,string$)$ Replaces specified characters of a string object with another

string. The characters to be replaced are determined by the

first two parameters: from the position specified by the first

parameter, as many characters as specified by the second

parameter. The string to be inserted in their place is specified

by the third parameter.