added DoubleTest.java

doubleTest.java

@@ -0,0 +1,23 @@
+public class doubleTest {
+
+  public static void main(String[] args) {
+    System.out.println(containsMultipleOf(new int[] {}, 2));
+    System.out.println(containsMultipleOf(new int[] { 1, 1, 1 }, 2));
+    System.out.println(containsMultipleOf(new int[] { 1, 1, 3 }, 3));
+    System.out.println(containsMultipleOf(new int[] { -1, -2, -3 }, 1));
+  }
+
+  public static boolean containsMultipleOf(int[] x, int base) {
+    int counter = 0;
+    for (int i = 0; i < x.length; i++) {
+      if (x[i] / base != 0) {
+        counter++;
+      }
+    }
+    if (counter > 0) {
+      return true;
+    } else {
+      return false;
+    }
+  }
+}