hello
good day!

following is my insertion sort program to sort a set of numbers ascendingly.

Code:
#include <iostream>

using namespace std;

class Sorting {                         //sorting class
      private:
      int number[];
      int num[];
      int sun;
      public:
      void setNumber(int, int, int, int);
      int getNumber();
      void insertionSort(int*, int);
      void print();
      };

void Sorting::setNumber(int n1, int n2, int n3,int n4)       //setter for the set of numbers

{
 int num[] = {n1, n2, n3, n4};
 int *kums = num;
 sun = *kums;
}


int Sorting::getNumber()      //getter for the set of numbers
{
    return sun;
}



void Sorting::insertionSort(int numbers[], int array_size) //insertion sort
 {  
 int i, j, index;  
 for (i=1; i < array_size; i++)  
  {    
    index = numbers[i];    
    j = i;    
    while ((j > 0) && (numbers[j-1] > index))    
    {      
     numbers[j] = numbers[j-1];      
     j = j - 1;    
    }    
   numbers[j] = index;  
 }
} 


void Sorting::print()                // to print out the sorted set of numbers
{    
      for (int i=0; i<4; i++){
       cout<<num[i]<<endl;
    }
}
      
int main () {
    int result;
    int num1, num2, num3, num4;
    
    Sorting a;                //created an object, lets name it a

	cout<<"Numbers to insert -> ";
	cin>> num1>> num2>> num3>> num4;      //user enters the 4 numbers
	a.setNumber(num1,num2,num3,num4);     // assign the numbers
	
	a.insertionSort(a.getNumber(),4);   //to sort the numbers (compilation error here)

	a.print();                    //print out the sort elements


    system("PAUSE");
    return 0;
}
could someone please copy and paste the whole source code, try to compile and help me find out the errors.
my compiler is dev C++

i got this error message: 66 invalid conversion from `int' to `int*'

a.insertionSort(a.getNumber(),4); <----- this line

i really appreciate your help...
thank you very much...