Fixed test dir, static method, lowercase method name (#210)

exercises/sum-of-multiples/src/example/java/SumOfMultiples.java

-import java.util.Arrays;
 public class SumOfMultiples {
     
     
-    public int Sum(int number, int[] set) {
+    public static int sum(int number, int[] set) {
         
         int sum = 0;
         int count = 0;

exercises/sum-of-multiples/src/main/java/SumOfMultiples.java

-import java.util.Arrays;
 public class SumOfMultiples {
     
 }

exercises/sum-of-multiples/src/test/SumOfMultiplesTest.java → exercises/sum-of-multiples/src/test/java/SumOfMultiplesTest.java

     @Test
     public void testSumOfMultiplesOf3and4UpToOne() {
         
-        SumOfMultiples mySum = new SumOfMultiples();
         int[] set = {
             3,
             5
         };
-        int output = mySum.Sum(1, set);
+        int output = SumOfMultiples.sum(1, set);
         assertEquals(0, output);
         
     }
     @Ignore
     public void testSumOfMultiplesOf3and5UpToFour() {
         
-        SumOfMultiples mySum = new SumOfMultiples();
         int[] set = {
             3,
             5
         };
-        int output = mySum.Sum(4, set);
+        int output = SumOfMultiples.sum(4, set);
         assertEquals(3, output);
         
     }
     @Ignore
     public void testSumOfMultiplesOf3and5UpToTen() {
         
-        SumOfMultiples mySum = new SumOfMultiples();
         int[] set = {
             3,
             5
         };
-        int output = mySum.Sum(10, set);
+        int output = SumOfMultiples.sum(10, set);
         assertEquals(23, output);
         
     }
     @Ignore
     public void testSumOfMultiplesOf3and5UpToOneHundred() {
         
-        SumOfMultiples mySum = new SumOfMultiples();
         int[] set = {
             3,
             5
         };
-        int output = mySum.Sum(100, set);
+        int output = SumOfMultiples.sum(100, set);
         assertEquals(2318, output);
         
     }
     @Ignore
     public void testSumOfMultiplesOf3and5UpToOneThousand() {
         
-        SumOfMultiples mySum = new SumOfMultiples();
         int[] set = {
             3,
             5
         };
-        int output = mySum.Sum(1000, set);
+        int output = SumOfMultiples.sum(1000, set);
         assertEquals(233168, output);
         
     }
     @Ignore
     public void testSumOfMultiplesOf7and13and17UpToTwenty() {
         
-        SumOfMultiples mySum = new SumOfMultiples();
         int[] set = {
             7,
             13,
             17
         };
-        int output = mySum.Sum(20, set);
+        int output = SumOfMultiples.sum(20, set);
         assertEquals(51, output);
         
     }
     @Ignore
     public void testSumOfMultiplesOf4and6UpToFifteen() {
         
-        SumOfMultiples mySum = new SumOfMultiples();
         int[] set = {
             4,
             6
         };
-        int output = mySum.Sum(15, set);
+        int output = SumOfMultiples.sum(15, set);
         assertEquals(30, output);
         
     }
     @Ignore
     public void testSumOfMultiplesOf5and6and8UpToOneHundredFifty() {
         
-        SumOfMultiples mySum = new SumOfMultiples();
         int[] set = {
             5,
             6,
             8
         };
-        int output = mySum.Sum(150, set);
+        int output = SumOfMultiples.sum(150, set);
         assertEquals(4419, output);
         
     }
     @Ignore
     public void testSumOfMultiplesOf5and25UpToTwoHundredSeventyFive() {
         
-        SumOfMultiples mySum = new SumOfMultiples();
         int[] set = {
             5,
             25
         };
-        int output = mySum.Sum(51, set);
+        int output = SumOfMultiples.sum(51, set);
         assertEquals(275, output);
         
     }
     @Ignore
     public void testSumOfMultiplesOf43and47UpToTenThousand() {
         
-        SumOfMultiples mySum = new SumOfMultiples();
         int[] set = {
             43,
             47
         };
-        int output = mySum.Sum(10000, set);
+        int output = SumOfMultiples.sum(10000, set);
         assertEquals(2203160, output);
         
     }
     @Ignore
     public void testSumOfMultiplesOfOneUpToOneHundred() {
         
-        SumOfMultiples mySum = new SumOfMultiples();
         int[] set = {
             1
         };
-        int output = mySum.Sum(100, set);
+        int output = SumOfMultiples.sum(100, set);
         assertEquals(4950, output);
         
     }
     @Ignore
     public void testSumOfMultiplesOfNoneUpToTenThousand() {
         
-        SumOfMultiples mySum = new SumOfMultiples();
         int[] set = {};
-        int output = mySum.Sum(10000, set);
+        int output = SumOfMultiples.sum(10000, set);
         assertEquals(0, output);
         
     }