FUNCTIONS - simple : sum & product

class aman
{
    public void sum() //simple function
    {
        int a=10;
        int b=100;
        int c=a+b;
        System.out.println("The sum of two numbers is = " +c);
    }
    public void prod()
    {
        int m = 1987;
        int n = 4;
        int p = m*n;
       
        System.out.println("the product of 2 numbers = " +p);
    }
}