refactor 8

Author: fishercoder1534

src/main/java/com/fishercoder/solutions/_8.java

@@ -2,42 +2,42 @@
 
 public class _8 {
 
-	public static class Solution1 {
-		/**
-		 * four corner cases:
-		 * 1. discards all leading zeroes
-		 * 2. sign of the number
-		 * 3. overflow
-		 * 4. invalid input
-		 * */
-		public int myAtoi(String str) {
-			int pointer = 0;
-			int result = 0;
-			while (pointer < str.length() && Character.isWhitespace(str.charAt(pointer))) {
-				pointer++;
-			}
-			if (pointer == str.length()) {
-				return 0;
-			}
-			boolean negativeFlag = (str.charAt(pointer) == '-');
-			if (str.charAt(pointer) == '+' || str.charAt(pointer) == '-') {
-				pointer++;
-			}
-			for (; pointer < str.length(); pointer++) {
-				if (str.charAt(pointer) > '9' || str.charAt(pointer) < '0') {
-					break;
-				} else {
-					int digit = str.charAt(pointer) - '0';
-					if (!negativeFlag && result > (Integer.MAX_VALUE - digit) / 10) {
-						return Integer.MAX_VALUE;
-					} else if (negativeFlag && result < (Integer.MIN_VALUE + digit) / 10) {
-						return Integer.MIN_VALUE;
-					}
-					result = result * 10 + (negativeFlag ? -digit : digit);
-				}
-			}
-			return result;
-		}
-	}
+    public static class Solution1 {
+        /**
+         * four corner cases:
+         * 1. discards all leading zeroes
+         * 2. sign of the number
+         * 3. overflow
+         * 4. invalid input
+         */
+        public int myAtoi(String s) {
+            int pointer = 0;
+            int result = 0;
+            while (pointer < s.length() && Character.isWhitespace(s.charAt(pointer))) {
+                pointer++;
+            }
+            if (pointer == s.length()) {
+                return 0;
+            }
+            boolean negativeFlag = (s.charAt(pointer) == '-');
+            if (s.charAt(pointer) == '+' || s.charAt(pointer) == '-') {
+                pointer++;
+            }
+            for (; pointer < s.length(); pointer++) {
+                if (s.charAt(pointer) > '9' || s.charAt(pointer) < '0') {
+                    break;
+                } else {
+                    int digit = s.charAt(pointer) - '0';
+                    if (!negativeFlag && result > (Integer.MAX_VALUE - digit) / 10) {
+                        return Integer.MAX_VALUE;
+                    } else if (negativeFlag && result < (Integer.MIN_VALUE + digit) / 10) {
+                        return Integer.MIN_VALUE;
+                    }
+                    result = result * 10 + (negativeFlag ? -digit : digit);
+                }
+            }
+            return result;
+        }
+    }
 
 }