MyEclipse×Ô¶¯Éú³É×¢²áÂëµÄjavaÀà
½«ÒÔÏÂÄÚÈݸ´ÖÆEclipseÖÐÔËÐУ¬ËæÒâÊäÈëÒ»¸öÓû§Ãû£¬³ÌÐò»á×Ô¶¯¼ÆËã³ö×¢²áÂ룬¾ø¶ÔÄÜÓã¡£¡£¡
package sun;
import java.io.*;
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(); &n
Ïà¹ØÎĵµ£º
ϵͳÊôÐÔÊÇÖ¸ÓëÓû§³ÌÐòÏà¹ØµÄ²Ù×÷ϵͳÅäÖÃÐÅÏ¢ÒÔ¼°Èí¼þÐÅÏ¢¡£Í¨³£ÓëÓû§³ÌÐòÏà¹ØµÄÊôÐԹؼü×Ö°üÀ¨£º
¡¡¡¡¡ñfile.separator:Îļþ·Ö¸ô·û£¬Windows»·¾³ÏÂΪ“"£¬Unix»·¾³ÏÂΪ“/”£»
¡¡¡¡¡ñuser.home£ºÓû§Ö÷Ŀ¼£»
¡¡¡¡¡ñjava.home£ºJavaʵʱÔËÐл·¾³µÄ°²×°Ä¿Â¼£»
¡¡¡¡¡ñjava.ext.dirs£ºJDKµÄ°²×°Ä¿ ......
ΪʲôҪʹÓÃtomcat£¬jboosÕâÖÖ·þÎñÀ´ÔËÐÐÎÒÃǵĴúÂ룬Óкαػ¨Ôõô¶àÇ®ÂòIBm£¬BEAµÄ·þÎñÆ÷¡£²Ý£¨·ßÇàµÄÓïÆø£©£¬ÎÒÃÇÔÙÒ²²»¸ú±ðÈË×ß¡£
ÄѵÀÎÒÃÇ×Ô¼ºÐ´µÄ¶«Î÷¾Í²»¿É¿¿Âð£¿ÎÒÃÇ¿ª·¢ÎÒÃǵÄÏîÄ¿£¬ÐèÇóÎÒÃÇ×îÇå³þ£¬ÎÒÃÇÔõô×ö¸ÉÂﻹҪËûÃǹܣ¬SSHÊDZðÈËÌßÈ¥À´¡£
´Ó½ñÒÔºó£¬ÎÒ×Ô¼º¿ª·¢µÄjavaÆóÒµ³ÌÐò(tmd ÎÞ·¨¾ÍÊÇÇëÇó/ÏìӦģʽ ......
/**
* Ö±½Ó²åÈëÅÅÐò,Ê×ÏȱȽÏa[n]Óëa[n-1]£¬ÔڱȽÏa[n]Óëa[n-2]
* */
public void sort0(double[] a){
for(int i = 0; i < a.length -1; i ++){
......
¹ØÓÚJavaÒç³ö·ÖÀ࣬ÎÒ¾³£Åöµ½µÄÊÇÁ½ÀࣺһÀàÊÇjava.lang.OutOfMemoryError: Java heap space£¬Ò»ÀàÊÇjava.lang.OutOfMemoryError: PermGen space¡£
ÔÚÕâÁ½ÀàÖУ¬Ç°ÕßÅö¼ûµÄ´ÎÊý±È½ÏƵ·±¡£ÒòΪµ¼ÖÂJava heap spaceµÄÇé¿ö£¬ÓÐʱºò²¢²»ÊÇÄÚ´æ²»¹»£¬ËüÒ²»áÅ×´Ë´íÎóÐÅÏ¢¡£ÀýÈçÎÒ¾ÍÅöµ½¹ýÕâÑùµÄÇé¿ö£¬ÎÒµ±Ê±Í¨¹ýGCÈÕÖ¾·¢ÏÖ£¬ÄÚ´ ......
package debug;import java.io.*;import java.lang.Thread;class MyThread extends Thread{ public int x = 0; public void run(){ System.out.println(++x); }}class R implements Runnable{ private int x = 0; public void run(){ System.out.printl ......