Модуль 1. Урок 0. Общий для класса байткод. — Байт-код Java

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The ClassFile Strucrure (JVM specification)

Flag Name   Value   Interpretation
ACC_PUBLIC  0x0001  Declared public; may be accessed from outside its package.
ACC_FINAL   0x0010  Declared final; no subclasses allowed.
ACC_SUPER   0x0020  Treat superclass methods specially when invoked by the invokespecial instruction.
ACC_INTERFACE   0x0200  Is an interface, not a class.
ACC_ABSTRACT    0x0400  Declared abstract; must not be instantiated.
ACC_SYNTHETIC   0x1000  Declared synthetic; not present in the source code.
ACC_ANNOTATION  0x2000  Declared as an annotation type.
ACC_ENUM    0x4000  Declared as an enum type.

FieldType term  Type      Interpretation
B           byte      signed byte
C           char      Unicode character code point in the Basic Multilingual Plane, encoded with UTF-16
D           double    double-precision floating-point value
F           float     single-precision floating-point value
I           int       integer
J           long      long integer
L ClassName ;   reference an instance of class ClassName
S           short     signed short
Z           boolean   true or false
[           reference one array dimension