due March 13th The purpose of this assignment is to give you practice with const

Question

due March 13th The purpose of this assignment is to give you practice with constuctors, friend functions, static data members, static member functions and overloaded operators. Program Overview You are to write a String class with the necessary constructors and overloaded operator functions that makes use of the requisite main() function to produce the output below. Requirements The program will be tested using the main() listed below. The String class must contain: one non-static data member, a char* pointer. one static data member to keep a count of the number of a characters contained in all of the String objects in existence. 3 constructors. The default constuctor, a copy constructor and one other constructor. necessary overloaded operator functions a static member function that returns the number of a characters in all of the String objects in existence. a overloaded insertion operator friend function, used to print a String object. For this assignment you may NOT use the string class. The Required main() function int main() { // Constructors String A("apple"); String B("banana"); String C("cantaloupe"); String D(B); String E; // static member function cout << "Number of a's = " << String::a_count() << endl << endl; // Overloaded insertion operator cout << "A = " << A << endl; cout << "B = " << B << endl; cout << "C = " << C << endl; cout << "D = " << D << endl; cout << "E = " << E << endl << endl; // Relational operators cout << boolalpha; cout << "A < B " << (A < B) << endl; cout << "B < A " << (B < A) << endl; cout << "A == B " << (A == B) << endl << endl; // Assignment operator A = B; cout << "A = " << A << endl; cout << "A == B " << (A == B) << endl << endl; // Size (bang) operator cout << "A size = " << !A << endl; cout << "E size = " << !E << endl << endl; // Unary * operator cout << "C text = " << *C << endl << endl; // Plus operator cout << "A + B = " << A + B << endl << endl; // Plus equal operator A += C; cout << "A = " << A << endl << endl; // Index operator cout << "A[3] = " << A[3] << endl << endl; // static member function cout << "Number of a's = " << String::a_count() << endl; } Program Output Your output should look like the following. Number of a's = 9 A = apple B = banana C = cantaloupe D = banana E = A < B true B < A false A == B false A = banana A == B true A size = 6 E size = 0 C text = cantaloupe A + B = bananabanana A = bananacantaloupe A[3] = a Number of a's = 13 Program Hint Write and test one function at a time. Perform thorough testing, not just the the required main().

Explanation / Answer

int main ()

{

String A("apple");

String B("banana");

String C("cantaloupe");

String D(B);

String E; // static member function

cout << "Number of a's = " << String::a_count() << endl << endl; // Overloaded insertion operator

cout << "A = " << A << endl;

cout << "B = " << B << endl;

cout << "C = " << C << endl;

cout << "D = " << D << endl;

cout << "E = " << E << endl << endl; // Relational operators

cout << boolalpha;

cout << "A < B " << (A < B) << endl;

cout << "B < A " << (B < A) << endl;

cout << "A == B " << (A == B) << endl << endl; // Assignment operator A = B;

cout << "A = " << A << endl;

cout << "A == B " << (A == B) << endl << endl; // Size (bang) operator

cout << "A size = " << !A << endl;

cout << "E size = " << !E << endl << endl; // Unary * operator

cout << "C text = " << *C << endl << endl; // Plus operator

cout << "A + B = " << A + B << endl << endl; // Plus equal operator

A += C;

cout << "A = " << A << endl << endl; // Index operator

cout << "A[3] = " << A[3] << endl << endl; // static member function

cout << "Number of a's = " << String::a_count() << endl;

}

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