Generate the factorial for any given number.

The factorial of 5 is 5x4x3x2x1 = 120.

The factorial of 4 is 4x3x2x1 = 24.

starter code

public class Factorial { private int number;

public Factorial() { }

public Factorial(int num) { }

public void setNum(int num) { }

public int getNum() { return 0; }

public long getFactorial( ) { long factorial=1;

return factorial; }

public String toString() { return "factorial of " + getNum() + " is "+ getFactorial()+" "; } }