From 194425d7875ef42fce52516ed59c81ee97720399 Mon Sep 17 00:00:00 2001
From: Shaojin Wen <shaojin.wensj@alibaba-inc.com>
Date: Fri, 5 Jul 2024 12:50:09 +0000
Subject: [PATCH] 8335645: j.u.Formatter#trailingZeros improved with String
 repeat

Reviewed-by: liach, jlu, naoto
---
 src/java.base/share/classes/java/util/Formatter.java | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/java.base/share/classes/java/util/Formatter.java b/src/java.base/share/classes/java/util/Formatter.java
index 41b9540001c..dfdb77cc6ac 100644
--- a/src/java.base/share/classes/java/util/Formatter.java
+++ b/src/java.base/share/classes/java/util/Formatter.java
@@ -4249,8 +4249,8 @@ public final class Formatter implements Closeable, Flushable {
 
         // Add trailing zeros
         private void trailingZeros(StringBuilder sb, int nzeros) {
-            for (int i = 0; i < nzeros; i++) {
-                sb.append('0');
+            if (nzeros > 0) {
+                sb.repeat('0', nzeros);
             }
         }