C++ examples for STL:string
Check string length and compare string values
#include <iostream> #include <string> using namespace std; int main()/* w w w. j a va 2 s .c om*/ { string string1 = "Hello"; string string2 = "Hello there"; cout << "string1 is the string: " << string1 << endl; cout << "The number of characters in string1 is " << int(string1.length()) << endl << endl; cout << "string2 is the string: " << string2 << endl; cout << "The number of characters in string2 is " << int(string2.length()) << endl << endl; if (string1 < string2) cout << string1 << " is less than " << string2 << endl << endl; else if (string1 == string2) cout << string1 << " is equal to " << string2 << endl << endl; else cout << string1 << " is greater than " << string2 << endl << endl; string1 = string1 + " there world!"; cout << "After concatenation, string1 contains the characters: " << string1 << endl; cout << "The length of this string is " << int(string1.length()) << endl; return 0; }