will
What be the output of the following???
int a=3, b=4;
if (a=5) (Comparison needs ==)
cout << a;
else
cout << b;
cout << char(toupper(b + b));F
cout << b++; 4
cout << 8 2;6
struct pair
{
const string first;
int second;
};
p->first = ""; Error- first is a constant
p->second = 0; OK
Command Line Arguments
int main(int argc, char* argv[])
a words.txt this is a testq
cout<<argv[3];is
cout<<argv[5];testq
Maps
map<double, char> m;
m[8.5] = 'a';
m[6.0] = 'b';
m[4.5] = 'c';
m[6.0] = 'd';
map<double, char>::iterator p;
for (p=m.begin(); p!=m.end(); ++p)
cout << p->first << " " << p->second << "\n";
Ans : 4.5 c
6.0 d
8.5 a
cout << (*m.begin()).second << "\n"; c
cout << m.begin()->first << "\n";4.5
cout << m[6.0] << "\n";d
cout << m.size() << "\n"; // number of pairs3
cout << m[1.23] << "\n";
Strings
True or false?
string s = "abc";
(s == "abc")
("abc" s)
("abc" == == "abc")
Which are legal?
s = s;
s = "abc";
"abc" = s;Assignment has to be a variable
"abc" = "abc";Assignment has to be a variable
cout << s + s;
cout << "abc" + s;
cout << s + "abc";
cout << "abc" + "abc";
What do these print?
cout << s; abc
cout << "abc";abc
cout << s[1];b
cout << "abc"[1];b
cout << s + "1";abc1
cout << "abc" + 1;bc
cout << s.substr(1, 2);bc
cout << s.substr(3);" "
cout << (s+s)....