Write a program to find the length of a string.

Answer 1

#include <iostream>
#include <cstring>
using namespace std;

int main()
{
string str;
cin >> str;

cout << "Length of string : " << strlen(str.c_str());

return 0;
}

Answer 2

Why not just use length() of string class.

Answer 3

#include <iostream>
#include <sstream>
using namespace std;
int main ()
{
string word;
char letter;
int num = 0;

cout<<"enter a word: ";
cin>>word;

stringstream s(word);
while(s>>letter)
{
num++;
}
cout<<"the length of the string is: "<<num;
return 0;
}

Answer 4

to understand stringstream look at this it has very clear comments too.

https://code.sololearn.com/cxbsvjtABY48/?ref=app

Answer 5

When you are using string object to handle strings, then calling length() function w.r.t to string object shall be more effective for getting the length of the string

#include <iostream>
#include <string>

using namespace std;
int main ()
{
string str="Lengthy String";
cout << "The size of str is " << str.length() << " bytes.\n";
return 0;
}