// PL9/namespaceright2.cpp // User defined namespaces and resolution // Niels Walet, Last modified 03/12/2019 #include namespace namespace1 { const double ab{1.5}; class my_class { private: int x; public: my_class() : x{} {} my_class(int xx) : x{xx} {} ~my_class(){} void show(){std::cout<<"x="<