Java使用字节码。最相似的是
javap，每个链接的Oracle文档，
该 javap的 命令拆卸一个或多个类文件。其输出取决于所使用的选项。
package com.stackoverflow;class Main { public static void main(String[] args) { System.out.println("Hello, World!"); }}如果我将其编译为
Main.class然后运行，
javap -v Main.class我会得到
Classfile /home/efrisch/workspace/StackOverflow/bin/com/stackoverflow/Main.class Last modified Jun 18, 2015; size 553 bytes MD5 checksum de4f987e783aa0f145e7245269504028 Compiled from "Main.java"class com.stackoverflow.Main minor version: 0 major version: 52 flags: ACC_SUPERConstant pool: #1 = Class #2 // com/stackoverflow/Main #2 = Utf8 com/stackoverflow/Main #3 = Class #4 // java/lang/Object #4 = Utf8 java/lang/Object #5 = Utf8 <init> #6 = Utf8 ()V #7 = Utf8 Code #8 = Methodref #3.#9 // java/lang/Object."<init>":()V #9 = NameAndType #5:#6 // "<init>":()V #10 = Utf8 LineNumberTable #11 = Utf8 LocalVariableTable #12 = Utf8 this #13 = Utf8 Lcom/stackoverflow/Main; #14 = Utf8 main #15 = Utf8 ([Ljava/lang/String;)V #16 = Fieldref#17.#19 // java/lang/System.out:Ljava/io/PrintStream; #17 = Class #18 // java/lang/System #18 = Utf8 java/lang/System #19 = NameAndType #20:#21 // out:Ljava/io/PrintStream; #20 = Utf8 out #21 = Utf8 Ljava/io/PrintStream; #22 = String #23 // Hello, World! #23 = Utf8 Hello, World! #24 = Methodref #25.#27 // java/io/PrintStream.println:(Ljava/lang/String;)V #25 = Class #26 // java/io/PrintStream #26 = Utf8 java/io/PrintStream #27 = NameAndType #28:#29 // println:(Ljava/lang/String;)V #28 = Utf8 println #29 = Utf8 (Ljava/lang/String;)V #30 = Utf8 args #31 = Utf8 [Ljava/lang/String; #32 = Utf8 SourceFile #33 = Utf8 Main.java{ com.stackoverflow.Main(); descriptor: ()V flags: Code: stack=1, locals=1, args_size=1 0: aload_0 1: invokespecial #8 // Method java/lang/Object."<init>":()V 4: return LineNumberTable: line 3: 0 LocalVariableTable: Start Length Slot Name Signature 0 5 0 this Lcom/stackoverflow/Main; public static void main(java.lang.String[]); descriptor: ([Ljava/lang/String;)V flags: ACC_PUBLIC, ACC_STATIC Code: stack=2, locals=1, args_size=1 0: getstatic #16 // Field java/lang/System.out:Ljava/io/PrintStream; 3: ldc#22 // String Hello, World! 5: invokevirtual #24 // Method java/io/PrintStream.println:(Ljava/lang/String;)V 8: return LineNumberTable: line 5: 0 line 6: 8 LocalVariableTable: Start Length Slot Name Signature 0 9 0 args [Ljava/lang/String;}SourceFile: "Main.java"
