Question 5

Design a CLASS to overload a function sum( ) as follows:

       (i)    int sum(int A, int B) – with two integer arguments (A and B) calculate and return sum of all the even numbers in the range of A and B.

              Sample input: A=4 and B=16

              Sample output: sum = 4 + 6 + 8 + 10 + 12 + 14 + 16

       (ii)   double sum( double N ) – with one double arguments(N) calculate and return the product of the following series:

              sum = 1.0 x 1.2 x 1.4 x …………. x N

       (iii) int sum(int N) – with one integer argument (N) calculate and return sum of only odd digits of the number N.

              Sample input : N=43961

              Sample output : sum = 3 + 9 + 1 = 13

              Write the main method to create an object and invoke the above methods.

public class methodoverload
{
    int sum(int a,int b)
    {
        int tsum=0;;
        for(int i=a;i<=b;i++){
            if(i%2==0)
            tsum=tsum+i;
            else
            tsum=tsum;
        }
        return tsum;
    }
    double sum(double n)
    {
        double pro=1.0;
        for(double i=1.0;i<=n;i+=0.2){
            pro=pro*i;
            System.out.print(i +" * ");
        }
        return pro;
    }
    int sum(int n)
    {
        int s=0;
        int d;
        while(n>0)
        {
            d=n%10;
            s=s+d;
            n=n/10;
        }
        return s;
    }
    public static void main(String args[])
    {
        methodoverload m=new methodoverload();
        System.out.println(m.sum(2,10));
        System.out.println(m.sum(123));
        System.out.println(m.sum(1.5));
    }
}