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Update memory-area.md #2638

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2 changes: 1 addition & 1 deletion docs/java/jvm/memory-area.md
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Expand Up @@ -337,7 +337,7 @@ Java 对象的创建过程我建议最好是能默写出来，并且要掌握每
对象头包括两部分信息：

1. 标记字段（Mark Word）：用于存储对象自身的运行时数据， 如哈希码（HashCode）、GC 分代年龄、锁状态标志、线程持有的锁、偏向线程 ID、偏向时间戳等等。
2. 类型指针（Klass pointer）：对象指向它的类元数据的指针，虚拟机通过这个指针来确定这个对象是哪个类的实例。
2. 类型指针（Class pointer）：对象指向它的类元数据的指针，虚拟机通过这个指针来确定这个对象是哪个类的实例。

**实例数据部分是对象真正存储的有效信息**，也是在程序中所定义的各种类型的字段内容。

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