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Using The C++ Standard string Class

Using The C++ Standard string Class. #include <iostream> #include <string> using namespace std; void main() { string firstName = "Fred"; string lastName = "Flintstone"; string fullName = firstName + ' ' + lastName; cout << fullName << endl << endl; fullName = "Wilma";

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Using The C++ Standard string Class

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  1. Using The C++ Standard string Class #include <iostream> #include <string>using namespace std; void main() { string firstName = "Fred"; string lastName = "Flintstone"; string fullName = firstName + ' ' + lastName; cout << fullName << endl << endl; fullName = "Wilma"; fullName += ' '; fullName += lastName; cout << fullName << endl << endl; fullName.replace(0, 5, "Ms."); cout << fullName << endl; fullName.replace(4, 10, "Rubble"); cout << fullName << endl; fullName.insert(4, "Betty "); cout << fullName << endl << endl; fullName[1] = 'r'; fullName.replace(5, 3, "arne"); cout << fullName << endl << endl; return; } Make sure to add this! Assignment statements, addition operators, output operators Additive assignment operators Member functions insert and replace Accessing one character in the array with the [] operator CS 140

  2. Substrings and Size Adjustment with strings #include <iostream> #include <string> using namespace std; void main() { string name("Scooby Doo"); cout << name << endl << endl; string middle = name.substr(1,5); cout << middle << endl; middle.at(0) = name.at(7); cout << middle << endl; for (int i = 1; i <= 16; i++) { name.insert(7, middle + ' '); cout << name << endl; } cout << endl; return; } at member function substr member function string dynamically adjusts its size to accommodate new insertions! CS 140

  3. Using getline() to accept sentences #include <iostream> #include <string> using namespace std; void main() { string questionOne; string questionTwo; string questionThree; cout << "What is your name? "; getline(cin, questionOne); cout << "What is your quest? "; getline(cin, questionTwo); cout << "What is the air speed velocity of a swallow? "; getline(cin, questionThree); cout << questionOne << endl; cout << questionTwo << endl; cout << questionThree << endl; } The getline() function takes a whole line of input including spaces. CS 140

  4. Using strings to store filenames #include <iostream> #include <fstream> #include <string> using namespace std; void main() { string filename = "horribleSciFi.txt"; ofstream outfile; outfile.open(filename.c_str()); outfile << "Wesley Crusher\nJar Jar Binks\nNeelix\nEwoks\n" << "Rick Berman & Brannan Braga\n\n"; outfile.close(); } The c_str() function translates the string into a cstring. Wesley Crusher Jar Jar Binks Neelix Ewoks Rick Berman & Brannan Braga Final contents of ‘horribleSciFi.txt’. CS 140

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