12- strings

Question 1

string

Answer 1

specific constructs that are designed for processing sequences of characters
before using, include string header: #include <string>don’t use string.h
as well as using std::string;
string declaration: string mystr;
value assignment at declaration:
string mystr(”Hello”);
string mystr2=”Hello”;</string>

Question 2

lexicographically

Answer 2

how strings are ordered
letters in the alphabet are in the increasing order
longer word (with the same characters) is greater than shorter word

Question 3

size()

Answer 3

current string size (number of characters currently stored in string
length() is same

Question 4

max_size()

Answer 4

maximum number of characters in string allowed on this computer

Question 5

empty()

Answer 5

true if string is empty

Question 6

insert(start, substring)

Answer 6

inserts substring starting from position start
string s=”place”;
cout &laquo_space;s.insert(1, ”a”); // produces ”palace”

Question 7

replace (start, number, substring)

Answer 7

replaces number of characters starting from start with substring the number of characters replaced need not be the same
string s=”Hello”;
s.replace(1,4, ”i, there”); // produces ”Hi, there”

Question 8

append(string2)

Answer 8

appends string2 to the end of the string

Question 9

erase(start, number)

Answer 9

removes number of characters starting from start