去除空格，优化格式

Wenvii · web-flow · commit 6f3f2c90fe9d · 2025-05-13T19:44:03.000+08:00
diff --git a/docs/java/concurrent/java-concurrent-questions-02.md b/docs/java/concurrent/java-concurrent-questions-02.md
@@ -60,7 +60,7 @@ public class Singleton {
     private Singleton() {
     }
 
-    public  static Singleton getUniqueInstance() {
+    public static Singleton getUniqueInstance() {
        //先判断对象是否已经实例过，没有实例化过才进入加锁代码
         if (uniqueInstance == null) {
             //类对象加锁

Original file line number	Diff line number	Diff line change
`@@ -60,7 +60,7 @@ public class Singleton {`
`60`	`60`	`private Singleton() {`
`61`	`61`	`}`
`62`	`62`
`63`		`- public static Singleton getUniqueInstance() {`
	`63`	`+ public static Singleton getUniqueInstance() {`
`64`	`64`	`//先判断对象是否已经实例过，没有实例化过才进入加锁代码`
`65`	`65`	`if (uniqueInstance == null) {`
`66`	`66`	`//类对象加锁`