From 20add31a27c4eb1c8304e2457daf008f4e27a57c Mon Sep 17 00:00:00 2001
From: Jason Li <57246540+JasonLi1909@users.noreply.github.com>
Date: Sun, 30 Aug 2020 20:46:30 -0700
Subject: [PATCH] A more succinct answer

---
 java/string-2/mixString.java | 27 +++++++--------------------
 1 file changed, 7 insertions(+), 20 deletions(-)

diff --git a/java/string-2/mixString.java b/java/string-2/mixString.java
index fff78ed..9dfc97d 100644
--- a/java/string-2/mixString.java
+++ b/java/string-2/mixString.java
@@ -3,24 +3,11 @@
  * and so on. Any leftover chars go at the end of the result.
  */
 public String mixString(String a, String b) {
-    char[] arr;
-    String end;
-    int count = 0;
-        
-    if(a.length() < b.length()) {
-        arr = new char[2 * a.length()];
-        end = b.substring(a.length());
-    } else {
-        arr = new char[2 * b.length()];
-        end = a.substring(b.length());
-    }
-                                
-    for(int i = 0; i < arr.length / 2; i++) {
-        arr[count] = a.charAt(i);
-        count++;
-        arr[count] = b.charAt(i);
-        count++;
-    }
-                                                      
-    return new String(arr) + end;
+  StringBuffer mix = new StringBuffer();
+  int len = (a.length() > b.length())? a.length(): b.length(); 
+  for(int i = 0; i < len; i++){
+    if(i < a.length()) mix.append(a.charAt(i)); 
+    if(i < b.length()) mix.append(b.charAt(i)); 
+  }
+  return mix.toString(); 
 }