可以有多种方式判断类的名字：
假定所有的类都以com，org，或者net开头
搜索classpath来寻找名字为Hack的类
搜索classpath来寻找映射到这个文件的目录入口
直接查看类自身。对于所有的情况下，这是最直接的
Java规范规定了如何查看一个class文件。存储在class文件一开始的一个值就是以Java内部分割符“/”为格式的完整的类明。
下面的代码返回了文件C:\code\hacks\research\com\generationjava\Hack.class的内部类名com/generationjava/Hack，读者可以进一步编写代码将“/”转换成“.”：
static final public int MAGIC = 0xCAFEBABE;
// 传递C:\code\hacks\research\com\generationjava\Hack.class
// 假定存在这样一个类
public String getFullyQualifiedName(String filename) throws IOException {
String name = null;
try {
DataInputStream in = new
DataInputStream(new FileInputStream(filename));
if(in.readInt() != MAGIC) {
// 不是一个.class文件
thrownew IOException("Not a class file");
}
in.readUnsignedShort();// 次版本号
in.readUnsignedShort();// 主版本号
in.readUnsignedShort();// 长度
in.readByte();// CLASS=7
in.readUnsignedShort();// 忽略这个地方
in.readByte();// UTF8=1
name =in.readUTF();//类的名字!!!
in.close();
} catch(IOException ioe) {
ioe.printStackTrace();
}
return name;
}
当你直接从.class文件中获得类的信息的时候，就简化了开发。查找一个匿名.class类文件的完整的类名是任何基于.class文件工作的应用的重要部件。
72.36.192.* 于 2007-05-21 17:23:20发表:
Well done!
cellphone ringtones | free cell phone ring tones | sprint ringtones | free ringtones motorola | cingular free ringtones | free wav ringtones | free cellular south ringtones | free cellphone ringtones | ctu ringtones | ringtone ctu
72.36.192.* 于 2007-05-21 17:22:56发表:
Great work!
free mp3 download | free motorola ringtone downloads | 24 ringtone free | ringtones lg | free us cellular ringtones | tmobile ringtones | free lg ringtones | ringtones samsung | samsung free ringtones | ringtones cingular
72.36.192.* 于 2007-05-21 17:22:26发表:
Well done!
centennial wireless | free ringtones for nextel | free ringtones | suncom ringtones | free ringtone converter | voice ringtones | sony ericsson ringtones | ringtones for sprint phones | funny ringtones | ringtone midi
72.36.192.* 于 2007-05-21 17:21:54发表:
Great work!
alltel ringtones | ringtones composer | razr v3 ringtones | free nokia ringtone | alltel free ringtones | motorola keypress ringtones | ctu ringtone verizon | free midi ringtone | harry potter ringtone | motorola q ringtones
72.36.192.* 于 2007-05-20 17:46:19发表:
Well done!
pokerstars download | blackjack games | fun slots | slot machines | gambling online | games on line | free on line slots | poker machines | cleopatra slot | online casino
72.36.192.* 于 2007-05-20 17:45:50发表:
Nice site!
gambling sites | play texas holdem free | virtual poker | holdem poker | play slots for fun | slots on line | russian roulette games | noble poker | free online poker | deposit bonus casino
72.36.192.* 于 2007-05-20 17:45:19发表:
Good design!
free texas holdem online | bonus casino online | download poker | free blackjack online | poker free | no limit texas hold em | online games | free roulette | games slots | roulette online
72.36.192.* 于 2007-05-20 17:44:50发表:
Nice site!
free slot play | poker download | free slots for fun | free casino downloads | play texas holdem | slot machine | free bonus slots | star poker | blackjack free | casino no deposit
72.36.192.* 于 2007-05-20 17:44:16发表:
Nice site!
free slot machine games | play bingo | free bingo online | casino free online | sims slots | online poker sites | cleopatra slot machine | casino online download | paradise poker | video poker
72.36.192.* 于 2007-05-19 17:36:27发表:
Thank you!
download ringtones | country ringtones | crazy frog ring tone | star wars ringtones | free monophonic ringtones | ringtones nokia | christian ringtones | free ringtone downloads | free ring tones | boost ringtones
72.36.192.* 于 2007-05-19 17:35:56发表:
Thank you!
free ringtones for lg | ringtone uploader | cisco ringtones | verizon free ringtones | 24 ctu ringtone | free 24 ctu ringtone | free cricket ringtones | free tmobile ringtones | free samsung ringtones | free ringtones for u s cellular
72.36.192.* 于 2007-05-19 17:35:29发表:
Thank you!
free ringtone | alltel ringtones | free us cellular ringtones | free t mobile ringtones | midi ringtones | free wwe ringtones | free centennial wireless ringtones | ringtones for cingular | sony ericsson ringtones | free ringtones sprint
72.36.192.* 于 2007-05-19 17:34:55发表:
Well done!
ringtones for tracfone | mp3 ringtone converter | free blackberry ringtones | free polyphonic ringtone | ringtones mp3 | hifi ringtones | free gospel ringtones | cellular south ringtones | ring tones | crazy frog ringtones
72.36.192.* 于 2007-05-19 17:34:24发表:
Thank you!
free mp3 ringtone downloads | motorola q ringtones | suncom ringtones | harry potter ringtone | free ringtones motorola | voice ringtones | download free motorola ringtone | download free polyphonic ringtones | centennial ringtones | nokia ringtones
72.36.192.* 于 2007-05-18 17:23:24发表:
Well done!
casino slots | texas hold em free | online texas holdem | bingo games | free blackjack game | flash casino | games on line | free video slot games | free online poker games | gambling games
72.36.192.* 于 2007-05-18 17:22:56发表:
Nice site!
sims free slots | no deposit casinos | sim slots | free online black jack | games online | free on line poker | games download | texas holdem free online | poker texas holdem | free casino games online
72.36.192.* 于 2007-05-18 17:22:25发表:
Nice site!
free casino game | strip blackjack | internet blackjack | free slots | play free slots | free gambling | play free blackjack | casinos online | free poker downloads | aussie slots
72.36.192.* 于 2007-05-18 17:21:55发表:
Great work!
video slot machine | free bingo | free money no deposit casinos | video slot games | monopoly online | download casino games | no deposit casino | free poker | no download casino | play poker for free
72.36.192.* 于 2007-05-18 17:21:24发表:
Nice site!
play casino games | casino online download | online free blackjack | poker sites | free roulette | free slots downloads | slot machine software | free strip blackjack | download casino | slots of fun
72.36.192.* 于 2007-05-17 17:26:01发表:
Well done!
download casino games | casino on line | video slots | no download casino | online casino games | play slots for free | no deposit bonus | pokerstars download | poker free | play poker online
72.36.192.* 于 2007-05-17 17:25:29发表:
Well done!
no deposit bonuses | free download poker | best usa casino online | texas hold em poker | texas holdem poker | free slot games online | casino black jack | play poker | free gambling | casino bonuses
72.36.192.* 于 2007-05-17 17:25:07发表:
Thank you!
play bingo | on line gambling | poker machines | texas hold em | video slots free | game slot | poker websites | monopoly slots | play texas holdem online | free video
72.36.192.* 于 2007-05-17 17:24:37发表:
Good design!
free slot games no download | casino free game online | online slots free | best online casinos | casino download | poker sites | online poker | download free poker | no deposit casinos | play roulette free
72.36.192.* 于 2007-05-17 17:24:07发表:
Great work!
slot games free | casino poker | free roulette games | video slot games | online blackjack free | free slots downloads | online games | video poker download | free online strip blackjack | roulette online
72.36.192.* 于 2007-05-16 17:25:51发表:
Nice site!
free no download slots | party poker download | poker free download | online black jack game | slots for fun | best poker sites | free video slots | games slots | texas hold em free | play poker online
72.36.192.* 于 2007-05-16 17:25:19发表:
Good design!
casino slots | free roulette | free play slot machines | free online slot games | blackjack for free | roulette game | games download | strip black jack | play free slots | play free blackjack
72.36.192.* 于 2007-05-16 17:24:57发表:
Thank you!
gambling machines | gambling online | free online casino game | texas hold em | play bingo online | black jack online | computer poker | free casino slot | free money casinos | on line gambling
72.36.192.* 于 2007-05-16 17:24:19发表:
Great work!
no deposit casinos | world poker | free slot machines | slots download | online free blackjack | poker stars | best online casino games | stud poker | bingo online | free 3 card poker
72.36.192.* 于 2007-05-16 17:23:52发表:
Well done!
free casinos | aussie slots | keno online | poker websites | free video slot games | online free roulette | casino bonus | no deposit bonus | free games online | online free poker
72.36.192.* 于 2007-05-15 17:23:50发表:
Nice site!
free fun slots | free video | poker online free | online poker games | blackjack download | video poker | online poker | poker stars | poker games download | free games on line
72.36.192.* 于 2007-05-15 17:23:19发表:
Good design!
casino free games | play slots for free | free slot machines online | free roulette | internet bingo | free online slot machines | blackjack free | free casino bonus | black jack game | free online slot machine games
72.36.192.* 于 2007-05-15 17:22:50发表:
Great work!
free online slots | free online bingo | play casino games | no limit texas hold em | poker free | slots games | internet casinos | play texas holdem online | free strip black jack | world series of poker
72.36.192.* 于 2007-05-15 17:22:18发表:
Good design!
sim slots | free slim slots | free download poker | free slot machine | free slot machine play | play slots | slots for free | blackjack for free | slots of fun | poker machines
72.36.192.* 于 2007-05-15 17:21:42发表:
Good design!
flash casino | free slot play | virtual poker | free no download slots | download blackjack | texas holdem | casino games online | poker game | slot machine software | free poker download
72.36.192.* 于 2007-05-14 11:29:44发表:
Nice site!
ringtones for motorola | download free polyphonic ringtones | free ringtones for cricket | free anime ringtones | mosquito ringtone | free mobile phone ringtones | free ringtones for us cellular | motorola mp3 ringtones | 24 ringtone free | motorola ring tones
72.36.192.* 于 2007-05-14 11:29:15发表:
Nice site!
free ringtones sprint | free wav ringtones | free nextel ringtones | free composer ringtones | star wars ringtones | free cell phone ring tones | u s cellular ringtones | us cellular ringtones | free sprint ringtones | 24 ring tone
72.36.192.* 于 2007-05-14 11:28:42发表:
Great work!
free ringtones mp3 | lg ringtones | free country music ringtones | verizon free ringtones | crazy frog ringtone | ringtone nokia | ringtones for nokia | free nokia ringtone | boost ringtones | real ringtones
72.36.192.* 于 2007-05-14 11:28:13发表:
Nice site!
free cell phone ringtones | voice ringtone | ringtones verizon | 24 ring tones | cellphone ringtones | free tracfone ringtones | 24 ringtones | free ringtones for samsung | ringtones for nextel | sprint phones
72.36.192.* 于 2007-05-14 11:27:45发表:
Good design!
hifi ringtones | nascar ringtones | free nascar ringtones | free phone downloads | free mp3 ringtone downloads | midi ringtones | free ringtones for lg | free ringtones for verizon | free cellular one ringtones | free motorola downloads
72.36.192.* 于 2007-05-13 06:58:22发表:
Well done!
sims slots | free online slot machine | black jack | best online casinos | poker websites | poker bonus | free money no deposit | slim slots | play bingo | online poker free