Posted on 2007-01-04 20:20
acooly 阅读(437)
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Java开发
public
class
Main {
private
static
final
String L
=
"
Decompiling this copyrighted software" + "is a violation of both your" + "license agreement and the Digital Millenium Copyright Act of 1998" + "(http://www.loc.gov/copyright/legislation/dmca.pdf)." + "Under section 1204 of the DMCA, penalties range up to" + "a $500,000 fine or up to five years imprisonment for "+ "a first offense. Think about it; pay for a license,"+ "avoid prosecution, and feel better about yourself.
"
;
public
static
void
main(String[] args) {
String userId
=
"
zhangpu
"
;
//
mLR8ZC-056-55-4467865306604733
//
MyEclipse4.1 GA
//
其中491(4.9.1)/400(4.0)/401(4.1)/501(5.1.0)，()内为版本号，9912310代表注册码过期时间2099/12/31
String need
=
userId.substring(
0
,
1
)
+
"
YE3MP-501-00-9912310
"
;
//
MyEclipse4.0.0 GA
//
String need = userId.substring(0,1) + "YE3MP-400-01-9912310";
//
MyEclipse4.9.1
//
String need = userId.substring(0,1) + "YE3MP-491-01-9912310";
//
MyEclipse5.1.0 GA
//
String need = userId.substring(0,1) + "YE3MP-501-00-9912310";
String dx
=
need
+
L
+
userId;
int
suf
=
decode(dx);
//
System.out.println("SUF:"+suf);
String code
=
need
+
suf;
System.out.println(change(code));
}
static
int
decode(String s) {
int
i
=
0
;
char
ac[]
=
s.toCharArray();
int
j
=
0
;
for
(
int
k
=
ac.length; j
<
k; j
++
) {
i
=
31
*
i
+
ac[j];
}
return
Math.abs(i);
}
static
String change(String s) {
byte
abyte0[]
=
s.getBytes();
char
ac[]
=
new
char
[s.length()];
int
i
=
0
;
for
(
int
k
=
abyte0.length; i
<
k; i
++
) {
int
j
=
abyte0[i];
if
(j
>=
48
&&
j
<=
57
)
j
=
((j
-
48
)
+
5
)
%
10
+
48
;
else
if
(j
>=
65
&&
j
<=
90
)
j
=
((j
-
65
)
+
13
)
%
26
+
65
;
else
if
(j
>=
97
&&
j
<=
122
)
j
=
((j
-
97
)
+
13
)
%
26
+
97
;
ac[i]
=
(
char
) j;
}
return
String.valueOf(ac);
}
}