add accessors and mutators to this cpp file

programs an... Pun share G computer.cpp saved 1 #include "computer.h" void Computer::setYear(int y) { year=y; Computer::Computer(): Computer(-1, "") {} Computer :: Computer(int y, string m) : Computer(y, m, "") () Computer::Computer(int y, string m, string p) { setYear(y); model = m; purpose = p; 15 int Computer::getYear() const {return year;} 16 17 Computer::-Computer() {cout