A class Composite contains a two-dimensional array of order [m x n]. The maximum values possible…

A class Composite contains a two-dimensional array of order [m x n]. The maximum values possible for both ‘m’ and ‘n’ is 20. Design a class Composite to fill the array with the first (m x n) composite numbers in column wise. [Composite numbers are those which have more than two factors.] The details of the members of the class are given below: Class name : Composite Data members/instance variables: arr[ ][ ] : integer array to store the composite numbers column wise m : integer to store the number of rows n : integer to store the number of columns Member functions/methods: Composite(int mm, int nn ) : to initialize the size of the matrix, m=mm and n=nn int isComposite( int p ) : to return 1 if the number is composite otherwise returns 0 void fill ( ) : to fill the elements of the array with the first (m × n) composite numbers in column wise void display( ) : to display the array in a matrix form Specify the class Composite giving details of the constructor(int,int), int isComposite(int), void fill( ) and void display( ). Define a main( ) function to create an object and call all the functions accordingly to enable the task.

class Composite
{
    int arr[][];
    int m, n;

    Composite(int mm, int nn)
    {
        m = mm;
        n = nn;
        arr = new int[m][n];
    }

    int isComposite(int p)
    {
        if (p < 4)
            return 0;
        int count = 0;
        for (int i = 1; i <= p; i++)
            if (p % i == 0)
                count++;
        return (count > 2) ? 1 : 0;
    }

    void fill()
    {
        int num = 3;
        for (int j = 0; j < n; j++)
        {
            for (int i = 0; i < m; i++)
            {
                num++;
                while (isComposite(num) == 0)
                    num++;
                arr[i][j] = num;
            }
        }
    }

    void display()
    {
        for (int i = 0; i < m; i++)
        {
            for (int j = 0; j < n; j++)
                System.out.print(arr[i][j] + "\t");
            System.out.println();
        }
    }

    public static void main(String args[])
    {
        Composite obj = new Composite(3, 3);
        obj.fill();
        obj.display();
    }
}