The Java Class Viewer (jCV) is a visual class file inspector.
It can open .class, .jar, files,
etc.
By using jCV, you can see the meaning of each byte in the class file.
A class file is a stream of 8-bit bytes; it has the
following structure, as described in JVM Spec:
ClassFile {
u4 magic;
u2 minor_version;
u2 major_version;
u2 constant_pool_count;
cp_info constant_pool[constant_pool_count-1];
u2 access_flags;
u2 this_class;
u2 super_class;
u2 interfaces_count;
u2 interfaces[interfaces_count];
u2 fields_count;
field_info fields[fields_count];
u2 methods_count;
method_info methods[methods_count];
u2 attributes_count;
attribute_info attributes[attributes_count];
}
The Java Class Viewer is displaying the class file in two panels.
The left panel is a tree just exactly as the
ClassFile structure; the right panel includes a binary
viewer. When you select a component in the tree node, the
corresponding bytes for the component will be selected automatically.
