refactor 227

Author: fishercoder1534

src/main/java/com/fishercoder/solutions/_227.java

@@ -3,21 +3,6 @@
 import java.util.ArrayDeque;
 import java.util.Deque;
 
-/**
- * 227. Basic Calculator II
- *
- * Implement a basic calculator to evaluate a simple expression string.
-
- The expression string contains only non-negative integers, +, -, *, / operators and empty spaces . The integer division should truncate toward zero.
-
- You may assume that the given expression is always valid.
-
- Some examples:
- "3+2*2" = 7
- " 3/2 " = 1
- " 3+5 / 2 " = 5
- Note: Do not use the eval built-in library function.
- */
 public class _227 {
 
     public static class Solution1 {