refactor 504

Author: fishercoder1534

src/main/java/com/fishercoder/solutions/_504.java

@@ -1,11 +1,13 @@
 package com.fishercoder.solutions;
 
 /**
+ * 504. Base 7
+ *
  * Given an integer, return its base 7 string representation.
-
  Example 1:
  Input: 100
  Output: "202"
+
  Example 2:
  Input: -7
  Output: "-10"
@@ -14,7 +16,9 @@
  */
 public class _504 {
 
-    public String convertToBase7(int num) {
-        return String.valueOf(Integer.toString(num, 7));
+    public static class Solution1 {
+        public String convertToBase7(int num) {
+            return String.valueOf(Integer.toString(num, 7));
+        }
     }
 }

src/test/java/com/fishercoder/_504Test.java

@@ -11,14 +11,14 @@
  * Created by fishercoder on 1/15/17.
  */
 public class _504Test {
-    private static _504 test;
+    private static _504.Solution1 solution1;
     private static String expected;
     private static String actual;
     private static int num;
 
     @BeforeClass
     public static void setup() {
-        test = new _504();
+        solution1 = new _504.Solution1();
     }
 
     @Before
@@ -32,15 +32,15 @@ public void setupForEachTest() {
     public void test1() {
         num = 100;
         expected = "202";
-        actual = test.convertToBase7(num);
+        actual = solution1.convertToBase7(num);
         assertEquals(expected, actual);
     }
 
     @Test
     public void test2() {
         num = -7;
         expected = "-10";
-        actual = test.convertToBase7(num);
+        actual = solution1.convertToBase7(num);
         assertEquals(expected, actual);
     }
 }