Fig01_05.cpp - Simplest IntCell class, with a test program #include /** * A class for simulating an integer memory cell. */ class IntCell { public: /** * Construct the IntCell. * Initial value is 0. */ IntCell( ) { storedValue = 0; } /** * Construct the IntCell. * Initial value is initialValue. */ IntCell( int initialValue ) { storedValue = initialValue; } /** * Return the stored value. */ int read( ) { return storedValue; } /** * Change the stored value to x. */ void write( int x ) { storedValue = x; } private: int storedValue; }; int main( ) { IntCell m; m.write( 5 ); cout << "Cell contents: " << m.read( ) << endl; return 0; }