Java Class檔案的一些解讀
阿新 • • 發佈：2019-01-28
E:\program\JVM\bin\com\gissky\clazz>javap -v Sub.class
Classfile /E:/program/JVM/bin/com/gissky/clazz/Sub.class
Last modified 2015-2-22; size 1363 bytes
MD5 checksum 2dc77c79e4790422407eb7092085883c
Compiled from "Sub.java"
public class com.gissky.clazz.Sub extends com.gissky.clazz.Base implements com.gissky.clazz.InterB,com.gissky.clazz.InterC
SourceFile: "Sub.java"
minor version: 0
major version: 51
flags: ACC_PUBLIC, ACC_SUPER
Constant pool:
#1 = Class #2 // com/gissky/clazz/Sub →類和介面的全限定名
#2 = Utf8 com/gissky/clazz/Sub
#3 = Class #4 // com/gissky/clazz/Base
#4 = Utf8 com/gissky/clazz/Base
#5 = Class #6 // com/gissky/clazz/InterB
#6 = Utf8 com/gissky/clazz/InterB
#7 = Class #8 // com/gissky/clazz/InterC
#8 = Utf8 com/gissky/clazz/InterC
#9 = Utf8 subInt
#10 = Utf8 I
#11 = Utf8 subString
#12 = Utf8 Ljava/lang/String;
#13 = Utf8 subObject
#14 = Utf8 Ljava/lang/Object;
#15 = Utf8 <init>
#16 = Utf8 ()V
#17 = Utf8 Code
#18 = Methodref #3.#19 // com/gissky/clazz/Base."<init>":()V
#19 = NameAndType #15:#16 // "<init>":()V
#20 = Utf8 LineNumberTable
#21 = Utf8 LocalVariableTable
#22 = Utf8 this
#23 = Utf8 Lcom/gissky/clazz/Sub;
#24 = Utf8 getSubInt
#25 = Utf8 ()I
#26 = Fieldref #1.#27 // com/gissky/clazz/Sub.subInt:I → 類中欄位的符號引用
#27 = NameAndType #9:#10 // subInt:I → 類中欄位的部分符號引用之名稱和型別
#28 = Utf8 setSubInt
#29 = Utf8 (I)V
#30 = Utf8 getSubString
#31 = Utf8 ()Ljava/lang/String;
#32 = Fieldref #1.#33 // com/gissky/clazz/Sub.subString:Ljava/lang/String;
#33 = NameAndType #11:#12 // subString:Ljava/lang/String;
#34 = Utf8 setSubString
#35 = Utf8 (Ljava/lang/String;)V
#36 = Utf8 getSubObject
#37 = Utf8 ()Ljava/lang/Object;
#38 = Fieldref #1.#39 // com/gissky/clazz/Sub.subObject:Ljava/lang/Object;
#39 = NameAndType #13:#14 // subObject:Ljava/lang/Object;
#40 = Utf8 setSubObject
#41 = Utf8 (Ljava/lang/Object;)V
#42 = Utf8 interC
#43 = Fieldref #44.#46 // java/lang/System.out:Ljava/io/PrintStream;
#44 = Class #45 // java/lang/System
#45 = Utf8 java/lang/System
#46 = NameAndType #47:#48 // out:Ljava/io/PrintStream;
#47 = Utf8 out
#48 = Utf8 Ljava/io/PrintStream;
#49 = String #50 // the interC in Sub
#50 = Utf8 the interC in Sub
#51 = Methodref #52.#54 // java/io/PrintStream.println:(Ljava/lang/String;)V
#52 = Class #53 // java/io/PrintStream
#53 = Utf8 java/io/PrintStream
#54 = NameAndType #55:#35 // println:(Ljava/lang/String;)V
#55 = Utf8 println
#56 = Utf8 interB
#57 = Utf8 (I)Ljava/lang/String;
#58 = String #59 // the interB in Sub →方法中用到的String常量
#59 = Utf8 the interB in Sub
#60 = Utf8 i
#61 = Utf8 SourceFile
#62 = Utf8 Sub.java
Classfile /E:/program/JVM/bin/com/gissky/clazz/Sub.class
Last modified 2015-2-22; size 1363 bytes
MD5 checksum 2dc77c79e4790422407eb7092085883c
Compiled from "Sub.java"
public class com.gissky.clazz.Sub extends com.gissky.clazz.Base implements com.gissky.clazz.InterB,com.gissky.clazz.InterC
SourceFile: "Sub.java"
minor version: 0
major version: 51
flags: ACC_PUBLIC, ACC_SUPER
Constant pool:
#1 = Class #2 // com/gissky/clazz/Sub →類和介面的全限定名
#2 = Utf8 com/gissky/clazz/Sub
#3 = Class #4 // com/gissky/clazz/Base
#4 = Utf8 com/gissky/clazz/Base
#5 = Class #6 // com/gissky/clazz/InterB
#6 = Utf8 com/gissky/clazz/InterB
#7 = Class #8 // com/gissky/clazz/InterC
#8 = Utf8 com/gissky/clazz/InterC
#9 = Utf8 subInt
#10 = Utf8 I
#11 = Utf8 subString
#12 = Utf8 Ljava/lang/String;
#13 = Utf8 subObject
#14 = Utf8 Ljava/lang/Object;
#15 = Utf8 <init>
#16 = Utf8 ()V
#17 = Utf8 Code
#18 = Methodref #3.#19 // com/gissky/clazz/Base."<init>":()V
#19 = NameAndType #15:#16 // "<init>":()V
#20 = Utf8 LineNumberTable
#21 = Utf8 LocalVariableTable
#22 = Utf8 this
#23 = Utf8 Lcom/gissky/clazz/Sub;
#24 = Utf8 getSubInt
#25 = Utf8 ()I
#26 = Fieldref #1.#27 // com/gissky/clazz/Sub.subInt:I → 類中欄位的符號引用
#27 = NameAndType #9:#10 // subInt:I → 類中欄位的部分符號引用之名稱和型別
#28 = Utf8 setSubInt
#29 = Utf8 (I)V
#30 = Utf8 getSubString
#31 = Utf8 ()Ljava/lang/String;
#32 = Fieldref #1.#33 // com/gissky/clazz/Sub.subString:Ljava/lang/String;
#33 = NameAndType #11:#12 // subString:Ljava/lang/String;
#34 = Utf8 setSubString
#35 = Utf8 (Ljava/lang/String;)V
#36 = Utf8 getSubObject
#37 = Utf8 ()Ljava/lang/Object;
#38 = Fieldref #1.#39 // com/gissky/clazz/Sub.subObject:Ljava/lang/Object;
#39 = NameAndType #13:#14 // subObject:Ljava/lang/Object;
#40 = Utf8 setSubObject
#41 = Utf8 (Ljava/lang/Object;)V
#42 = Utf8 interC
#43 = Fieldref #44.#46 // java/lang/System.out:Ljava/io/PrintStream;
#44 = Class #45 // java/lang/System
#45 = Utf8 java/lang/System
#46 = NameAndType #47:#48 // out:Ljava/io/PrintStream;
#47 = Utf8 out
#48 = Utf8 Ljava/io/PrintStream;
#49 = String #50 // the interC in Sub
#50 = Utf8 the interC in Sub
#51 = Methodref #52.#54 // java/io/PrintStream.println:(Ljava/lang/String;)V
#52 = Class #53 // java/io/PrintStream
#53 = Utf8 java/io/PrintStream
#54 = NameAndType #55:#35 // println:(Ljava/lang/String;)V
#55 = Utf8 println
#56 = Utf8 interB
#57 = Utf8 (I)Ljava/lang/String;
#58 = String #59 // the interB in Sub →方法中用到的String常量
#59 = Utf8 the interB in Sub
#60 = Utf8 i
#61 = Utf8 SourceFile
#62 = Utf8 Sub.java