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Snailclimb merged 1 commit into from
Jun 21, 2023
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Update class-file-structure.md #2056

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8 changes: 4 additions & 4 deletions docs/java/jvm/class-file-structure.md
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Original file line number Diff line number Diff line change
Expand Up @@ -31,9 +31,9 @@ ClassFile {
u2 access_flags;//Class 的访问标记
u2 this_class;//当前类
u2 super_class;//父类
u2 interfaces_count;//接口
u2 interfaces_count;//接口数量
u2 interfaces[interfaces_count];//一个类可以实现多个接口
u2 fields_count;//Class 文件的字段属性
u2 fields_count;//Class 文件的字段属性数量
field_info fields[fields_count];//一个类可以有多个字段
u2 methods_count;//Class 文件的方法数量
method_info methods[methods_count];//一个类可以有个多个方法
Expand Down Expand Up @@ -71,7 +71,7 @@ ClassFile {
u2 major_version;//Class 的大版本号
```

紧接着魔数的四个字节存储的是 Class 文件的版本号：第 5 和第 6 位是**次版本号**，第 7 和第 8 位是**主版本号**。
紧接着魔数的四个字节存储的是 Class 文件的版本号：第 5 和第 6 个字节是**次版本号**，第 7 和第 8 个字节是**主版本号**。

每当 Java 发布大版本（比如 Java 8，Java9）的时候，主版本号都会加 1。你可以使用 `javap -v` 命令来快速查看 Class 文件的版本号信息。

Expand Down Expand Up @@ -143,7 +143,7 @@ public class Employee {
```java
u2 this_class;//当前类
u2 super_class;//父类
u2 interfaces_count;//接口
u2 interfaces_count;//接口数量
u2 interfaces[interfaces_count];//一个类可以实现多个接口
```

Expand Down