From 7179718df290ccf0ecaaab044508aa309ffada8b Mon Sep 17 00:00:00 2001
From: lollerfirst <43107113+lollerfirst@users.noreply.github.com>
Date: Tue, 9 Jun 2020 08:40:46 +0200
Subject: [PATCH] Update ParseInteger.java

Fixed error for empty string.
---
 Maths/ParseInteger.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Maths/ParseInteger.java b/Maths/ParseInteger.java
index 91177bb4..c9c11528 100644
--- a/Maths/ParseInteger.java
+++ b/Maths/ParseInteger.java
@@ -16,7 +16,7 @@ public class ParseInteger {
      * @throws NumberFormatException if the {@code string} does not contain a parsable integer.
      */
     public static int parseInt(String s) {
-        if (s == null) {
+        if (s == null || s.length() == 0) {
             throw new NumberFormatException("null");
         }
         boolean isNegative = s.charAt(0) == '-';