fix build

fishercoder1534 · fishercoder1534 · commit 376c430a0615 · 2019-05-18T17:21:52.000-07:00
diff --git a/src/main/java/com/fishercoder/solutions/_89.java b/src/main/java/com/fishercoder/solutions/_89.java
@@ -49,23 +49,23 @@ public List<Integer> grayCode(int n) {
     }
   }
 
-  public static void main (String... args) {
+  public static void main(String... args) {
     System.out.println("-----------------------------------------------------------------------------------------");
     System.out.println("How to understand i << n? It means n to the power of two, see below. So we have an equivalent solution, which is solution2.");
-    System.out.println("1 << 2: " +  (1 << 2));
-    System.out.println("1 << 3: " +  (1 << 3));
-    System.out.println("1 << 4: " +  (1 << 4));
-    System.out.println("1 << 5: " +  (1 << 5));
-    System.out.println("1 << 6: " +  (1 << 6));
+    System.out.println("1 << 2: " + (1 << 2));
+    System.out.println("1 << 3: " + (1 << 3));
+    System.out.println("1 << 4: " + (1 << 4));
+    System.out.println("1 << 5: " + (1 << 5));
+    System.out.println("1 << 6: " + (1 << 6));
     System.out.println("-----------------------------------------------------------------------------------------");
     System.out.println("How to understand i >> 1? It means to shift the number i to the right by 1 bit, see below");
-    System.out.println("0 >> 1: " +  (0 >> 1));
-    System.out.println("1 >> 1: " +  (1 >> 1));
-    System.out.println("2 >> 1: " +  (2 >> 1));
-    System.out.println("3 >> 1: " +  (3 >> 1));
-    System.out.println("4 >> 1: " +  (4 >> 1));
-    System.out.println("5 >> 1: " +  (5 >> 1));
-    System.out.println("6 >> 1: " +  (6 >> 1));
+    System.out.println("0 >> 1: " + (0 >> 1));
+    System.out.println("1 >> 1: " + (1 >> 1));
+    System.out.println("2 >> 1: " + (2 >> 1));
+    System.out.println("3 >> 1: " + (3 >> 1));
+    System.out.println("4 >> 1: " + (4 >> 1));
+    System.out.println("5 >> 1: " + (5 >> 1));
+    System.out.println("6 >> 1: " + (6 >> 1));
   }
 
 }
