CA FE BA BE 魔幻数
00 00 次版本
00 32 主版本 50， JDK1.7
00 0F 常量池 15个
0A constant_methodref(10) constant_pool[1].tag
00 03 constant_pool[1].class_index -> 3
00 0C constant_pool[1].name_and_type_index -> 12
07 constant_class(7) constant_pool[2].tag
00 0D constant_pool[2].name_index -> 13
07 constant_class(7) constant_pool[3].tag
00 0E constant_pool[3].name_index -> 14
01 constant_utf8_info(1) constant_pool[4].tag
00 06 constant_pool[4].length -> 6
3C 69 6E 69 74 3E constant_pool[4].bytes[length] -> "<init>"
01 constant_utf8_info(1) constant_pool[5].tag
00 03 constant_pool[5].length -> 3
28 29 56 constant_pool[5].bytes[length] -> "()V"
01 constant_utf8_info(1) constant_pool[6].tag
00 04 constant_pool[6].length -> 4
43 6F 64 65 constant_pool[6].bytes[length] -> "Code"
01 constant_utf8_info(1) constant_pool[7].tag
00 0F constant_pool[7].length -> 15
4C 69 6E 65 4E 75 6D 62 65 72 54 61 62 6C 65 constant_pool[7].bytes[length] -> "LineNumberTable"
01 constant_utf8_info(1) constant_pool[8].tag
00 0D constant_pool[8].length -> 13
64 6F 4D 61 74 68 46 6F 72 65 76 65 72 constant_pool[8].bytes[length] -> "doMathForever"
01 constant_utf8_info(1) constant_pool[9].tag
00 0D constant_pool[9].length -> 13
53 74 61 63 6B 4D 61 70 54 61 62 6C 65 constant_pool[9].bytes[length] -> "StackMapTable"
01 constant_utf8_info(1) constant_pool[10].tag
00 0A constant_pool[10].length -> 10
53 6F 75 72 63 65 46 69 6C 65 constant_pool[10].bytes[length] -> "SourceFile"
01 constant_utf8_info(1) constant_pool[11].tag
00 08 constant_pool[11].length -> 8
41 63 74 2E 6A 61 76 61 constant_pool[11].bytes[length] -> "Act.java"
0C constant_NameAndType(12) constant_pool[12].tag
00 04 constant_pool[12].name_index -> 4
00 05 constant_pool[12].descriptor_index -> 5
01 constant_utf8_info(1) constant_pool[13].tag
00 03 constant_pool[13].length -> 3
41 63 74 constant_pool[13].bytes[length] -> "Act"
01 constant_utf8_info(1) constant_pool[14].tag
00 10 constant_pool[14].length -> 16
6A 61 76 61 2F 6C 61 6E
67 2F 4F 62 6A 65 63 74 constant_pool[14].bytes[length] -> "java/lang/Object"
00 20 access_flags ACC_SUPER 固定值,为了与老版本的java编译器兼容
00 02 this_class constant_pool[constant_pool[2].name_index] -> Act （constant_utf8_info[13]）
00 03 super_class constant_pool[constant_pool[3].name_index] -> "java/lang/Object" （constant_utf8_info[14]）
00 00 interfaces_count 0
00 00 fields_count 0
00 02 methods_count 2
-----------Method[0]---------------------------------------------
00 00 access_flags 编译器调用
00 04 name_indiex constant_pool[4].bytes[length] -> "<init>"
00 05 descriptor_index constant_pool[5].bytes[length] -> "()V"
00 01 attributes_count 1
00 06 attribute_name_index constant_pool[6].bytes[length] -> "Code"
00 00 00 1D attribute_length 29
00 01 max_stack 1
00 01 max_locals 1
