Give an example of using wrapper classes for non-object data types to prevent accidental concatenation of unrelated data kinds.

In java Define and create an array (called emps) of object references for objects of class Employee of length 100. (b) Create three objects for classes SalariedEmp, WeeklyEmp, and HourlyEmp (where these 3 classes are subclasses of class Employee); and with references e1, e2, e3 for the 3 objects:(c) Assign e1,e2, e3 to the first three elements of array emps:(d) Print the earnings of the 100 employee in the array emps in one loop (with polymorphism) where earnings are calculated with method earnings():

How can we prevent the accidental mixing of non-object and object values by using wrapper classes for non-object data types?

This is not a graded question. The question is in the picture

definition of "static" vs "dynamic" binding (i.e., between virtual and nonvirtual methods).

Write a C++ a class definition for an abstract data type called Graph that models anundirected graph. Some implementation details: Create code for a .cpp file with main function and code for a .h file with classes • Loops are allowed but multiple edges are not allowed.• Vertices are labeled by number from 0 to n-1 where n is the number of vertices in thegraph.Implement the following public member functions.• A constructor that creates an empty graph.• An appropriate destructor.• void load(char *filename): Creates the graph using the file passed into thefunction. The format of the file is described later. You may assume load is only calledonce for a graph. • void display(): Displays the graph's adjacency matrix to the screen.• void displayDFS(int vertex): Displays the result of a depth first searchstarting at the provided vertex. When you have a choice between selecting two vertices,pick the vertex with the lower number.• void displayBFS(int vertex): Displays the result of a breadth…

Please use this template /*************************************************************************  predefined classes, functions, structures*************************************************************************/#include <iostream>        // cin, cout// missing severalusing namespace std; /*************************************************************************  global formatting constants*************************************************************************/const unsigned int AUTHOR_COLUMN_WIDTH = 25;const unsigned int TITLE_COUNT_COLUMN_WIDTH = 18; /*************************************************************************  function prototypes*************************************************************************/void showMenu();void displayFirstFileLine(const string file_name);void displayFirstAuthorName(const string file_name);void displayFirstAuthorInformation(const string file_name);void displayAllAuthorInformation(const string file_name);void…