In C$++$ Define a class called Frequency based on map container as a data structure. The class can read characters from the console and count the Frequency of each character that has been input. An abstract class is shown below:

class Frequency $\{$

public:

$//$ add your methods here...

ReadString $($reads the characters from the input$)$

InsertStringToMap $($inserts the characters to the map$)$

PrintFreqTable $($prints all the map pair values to the output$)$

private:

$//$ define your data structures and data types here...

$\}$;