Dynamic array of class objects

[Juan3273]

I can't fix this code, the program will not generate random numbers for the length and width of the rectangles. I was recently introduced to pointers so I'm not too good with them. Any help will be greatly appreciated.

#include<iostream>
#include<ctime>
#include<cstdlib>
using namespace std;

class Rectangle
{
private:
	int lenght;
	int width;

public:
	Rectangle (int arg1 = 0, int arg2 = 0);

	void setLength(int arg3);
	int getLength(void);

	void setWidth(int arg4);
	int getWidth(void);

	int Area(void);

	void print(void);
};


int main ()
{
	srand(unsigned(time(0)));
	int n;
	cout << "This program lets you fill an array of rectangles with random lenghts and widths.\n";
	cout << "Enter the amount of rectangles you would like to generate.";
	cin >> n;
	cout << "\n\n";

	Rectangle *RecArray = new Rectangle[n];

	for (int i = 0; i < n; i++)
	{
		RecArray[i].setLength(rand()%10+1);
		RecArray[i].setWidth(rand()%15+1);
		cout << "Rectangle " << i + 1 << ": " << endl; 
		RecArray[i].print();
		cout << endl;
	}	

		
	delete[] RecArray;

	return 0;

}

Rectangle:: Rectangle(int arg1, int arg2)
{
	setLength(arg1);
	setWidth(arg2);
}

void Rectangle:: setLength(int arg3)
{
	arg3 = lenght;
}

int Rectangle:: getLength()
{
	return lenght;
}

void Rectangle:: setWidth(int arg4)
{
	arg4 = width;
}

int Rectangle:: getWidth()
{
	return width;
}

int Rectangle:: Area()
{
	return lenght*width;
}

void Rectangle:: print()
{
	cout << "Lenght = " << getWidth() << endl;
	cout << "Width = " << getLength() << endl;
	cout << "Area = " << Area() << endl;
}

[cire]

In assignment, the variable on the left takes it's value from the expression on the right.