Question

Write a full class definition for a class named Counter, and containing the following members: A data member counter of type int. A data member named limit of type int. A static int data member named nCounters which is initialized to 0. A constructor that takes two int arguments and assigns the first one to counter and the second one to limit. It also adds one to the static variable nCounters A member function called increment that accepts no parameters and returns no value. If the data member counter is less than limit, increment just adds one to the instance variable counter. A member function called decrement that accepts no parameters and returns no value. If counter is greater than zero, decrement subtracts one from the counter. A member function called getValue that accepts no parameters. It returns the value of the instance variable counter. A static function named getNCounters that accepts no parameters and returns an int. getNCounters returns the value of the static variable nCounters.

Answer 1

// making the class

class Counter {

int counter;

int limit;

// Constructor

Counter(int a, int b){

counter = a;

limit = b;

}

// static function to increment

static increment(){

if(counter<limit)

nCounter+=1;

}

// Decrement function

void decrement(){

if(counter>0)

nCounter-=1;

}

int getValue(){

return counter;

}

static int nCounter;

int getNCounters(){

return nCounter;

}

};

// Initializa the static

int Counter::nCounter = 0;