given a class window, with integer data members width, height, xpos, and ypos, write the following two constructors: a constructor accepting 4 integer arguments: width, height, horizontal position, and vertical position (in that order), that are used to initialize the corresponding members. a constructor accepting 2 integer arguments: width and height (in that order), that are used to initialize the corresponding members. the xpos and ypos members should be initialized to 0.