jtulach@17: package api;
jtulach@17: 
jtulach@17: /** Class to simplify arithmetical operations.
jtulach@17:  *
jtulach@17:  * @author Jaroslav Tulach <jtulach@netbeans.org>
jtulach@17:  */
jtulach@17: public class Arithmetica {
jtulach@17:     public int sumTwo(int one, int second) {
jtulach@17:         return one + second;
jtulach@17:     }
jtulach@17:     
jtulach@17:     public int sumAll(int... numbers) {
jtulach@17:         int sum = numbers[0];
jtulach@17:         for (int i = 1; i < numbers.length; i++) {
jtulach@17:             sum = sumTwo(sum, numbers[i]);
jtulach@17:         }
jtulach@17:         return sum;
jtulach@17:     }
jtulach@17:     
jtulach@17:     public int sumRange(int from, int to) {
jtulach@17:         return (from + to) * (from - to + 1) / 2;
jtulach@17:     }
jtulach@17: }