From 23c2a2bd06a3a8cfbd57e41e60369138ec14fd90 Mon Sep 17 00:00:00 2001
From: Zihlu Wang <zihlu.wang@outlook.com>
Date: Wed, 31 Jan 2024 12:26:13 +0800
Subject: [PATCH] docs: Added some documents.

---
 .../cn/org/codecrafters/devkit/utils/Base64Util.java   | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/devkit-utils/src/main/java/cn/org/codecrafters/devkit/utils/Base64Util.java b/devkit-utils/src/main/java/cn/org/codecrafters/devkit/utils/Base64Util.java
index 0f38bc6..fb0a80c 100644
--- a/devkit-utils/src/main/java/cn/org/codecrafters/devkit/utils/Base64Util.java
+++ b/devkit-utils/src/main/java/cn/org/codecrafters/devkit/utils/Base64Util.java
@@ -88,6 +88,11 @@ public final class Base64Util {
         return decoder;
     }
 
+    /**
+     * Ensure that there is only one Base64 URL Encoder.
+     *
+     * @return the {@link Base64.Encoder} instance
+     */
     private static Base64.Encoder getUrlEncoder() {
         if (Objects.isNull(urlEncoder)) {
             urlEncoder = Base64.getUrlEncoder();
@@ -95,6 +100,11 @@ public final class Base64Util {
         return urlEncoder;
     }
 
+    /**
+     * Ensure that there is only one Base64 URL Decoder.
+     *
+     * @return the {@link Base64.Encoder} instance
+     */
     public static Base64.Decoder getUrlDecoder() {
         if (Objects.isNull(urlDecoder)) {
             urlDecoder = Base64.getUrlDecoder();