MyEclipse的注册码 以及jdk环境变量的配置

MyEclipse的注册码

方法一：

Leung

YLR8ZC-855550-68587756452832028

方法二：

1.通过java代码运行可以得到你想要的注册码

a.安装jdk

b.然后配置环境变量

在我的电脑（右键）－－>系统属性（高级）－－>环境变量－－>在系统变量里面添加

JAVA_HOME=C:/Program Files/Java/jdk1.5.0_09

Path=%JAVA_HOME%/bin;%CATALINA_HOME%/bin;%SystemRoot%/system32;%SystemRoot%;%SystemRoot%/System32/Wbem

CLASSPATH=.;%JAVA_HOME%/lib;%JAVA_HOME%/lib/dt.jar;%JAVA_HOME%/lib/tools.jar;%CATALINA_HOME%/common/lib;%CATALINA_HOME%/common/lib/jsp-api.jar;%CATALINA_HOME%/common/lib/servlet-api.jar

c.然后在命令行里面运行Java 文件

文件如下 MyEclipseGen.Java

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
public class MyEclipseGen {
private static final String LL = "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 String getSerial(String userId, String licenseNum) {
java.util.Calendar cal = java.util.Calendar.getInstance();
cal.add(1, 3);
cal.add(6, -1);
java.text.NumberFormat nf = new java.text.DecimalFormat("000");
licenseNum = nf.format(Integer.valueOf(licenseNum));
String verTime = new StringBuilder("-").append(
new java.text.SimpleDateFormat("yyMMdd").format(cal.getTime()))
.append("0").toString();
String type = "YE3MP-";
String need = new StringBuilder(userId.substring(0, 1)).append(type)
.append("300").append(licenseNum).append(verTime).toString();
String dx = new StringBuilder(need).append(LL).append(userId)
.toString();
int suf = this.decode(dx);
String code = new StringBuilder(need).append(String.valueOf(suf))
.toString();
return this.change(code);
}
private int decode(String s) {
int i;
char[] ac;
int j;
int k;
i = 0;
ac = s.toCharArray();
j = 0;
k = ac.length;
while (j < k) {
i = (31 * i) + ac[j];
j++;
}
return Math.abs(i);
}
private String change(String s) {
byte[] abyte0;
char[] ac;
int i;
int k;
int j;
abyte0 = s.getBytes();
ac = new char[s.length()];
i = 0;
k = abyte0.length;
while (i < k) {
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;
i++;
}
return String.valueOf(ac);
}
public MyEclipseGen() {
super();
}
public static void main(String[] args) {
try {
System.out.println("please input register name:");
BufferedReader reader = new BufferedReader(new InputStreamReader(
System.in));
String userId = null;
userId = reader.readLine();
MyEclipseGen myeclipsegen = new MyEclipseGen();
String res = myeclipsegen.getSerial(userId, "5");
System.out.println("Serial:" + res);
reader.readLine();
} catch (IOException ex) {
}
}
}

注：若文件在D盘的Leung下面，就直接命令行－－>cmd-->D:-->cd Leung－－>javac MyEclipseGen.java-->java MyEclipseGen-->输入你想的名字比如Liang Yi就得到－>YLR8ZC-855550-68595356648508237