From 491b9f5efc01fa36fb3c174e130b46bc69c8d707 Mon Sep 17 00:00:00 2001
From: Shaojin Wen <shaojin.wensj@alibaba-inc.com>
Date: Sat, 20 Jul 2024 06:54:19 +0000
Subject: [PATCH] 8336706: Optimize LocalDate.toString with
 StringBuilder.repeat

Reviewed-by: liach, rriggs
---
 src/java.base/share/classes/java/time/LocalDate.java | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/java.base/share/classes/java/time/LocalDate.java b/src/java.base/share/classes/java/time/LocalDate.java
index 2649c098a5b..b0d7ad33c8a 100644
--- a/src/java.base/share/classes/java/time/LocalDate.java
+++ b/src/java.base/share/classes/java/time/LocalDate.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2012, 2023, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2012, 2024, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -2154,10 +2154,10 @@ public final class LocalDate
         StringBuilder buf = new StringBuilder(10);
         if (absYear < 1000) {
             if (yearValue < 0) {
-                buf.append(yearValue - 10000).deleteCharAt(1);
-            } else {
-                buf.append(yearValue + 10000).deleteCharAt(0);
+                buf.append('-');
             }
+            buf.repeat('0', absYear < 10 ? 3 : absYear < 100 ? 2 : 1);
+            buf.append(absYear);
         } else {
             if (yearValue > 9999) {
                 buf.append('+');