Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

MyEclipse7.0/8.0£¨ÓÃJavaÉú³É£©

    ½üÀ´Ñ§JSP+SSH£¬ÏÂÔØÁËMyEclipse 8.0 M1£¬ÍøÉÏÕÒµ½µÄ×¢²áÂëʵÔÚ²»¶à£¬ÕæµÄ²»¶à£¬¾ÍÄÇôһ¸ö£¬±­¾ß°¡£¬Òª²»¾ÍÊÇ×¢²á»ú£¬ÎÞÒâÖп´µ½Ò»¸öºÃ¶«Î÷£¬ÓÃJavaÉú³É×¢²áÂ룬ԭ×÷¶¼ÊÇË­ÎÒ²»ÖªµÀ£¬Èç¹û×÷ÕßÈÏΪÎÒ²»¸Ã°ÑÕâЩ´úÂëÌûÔÚÕâÀÇë¸æÖª£¬ÎÒÂíÉÏɾ³ý¡£²»¶à˵£¬ÉÏ´úÂ룺
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;


Ïà¹ØÎĵµ£º

Javaѧϰ±Ê¼Ç¢Ü

 Ñ§Ï°Java³ÌÐòÖ÷Òª°üº¬ÒÔÏÂËĸö²¿·Ö¡£
(1)±à¼­´úÂë  edit code
(2)±£´æ´úÂë  save code
(3)±àÒë´úÂë  compiler code
(4)ÔËÐгÌÐò  run program
µÚÒ»¸ö³ÌÐòÎļþHelloWorld.java
public class HelloWorld {
   public static void main(String[] args){
     ......

java¶ÁÈ¡XMLÎļþÀïÃæµÄÊý¾ÝÖ®DOMʵÏÖ

import org.w3c.dom.*;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import java.io.*;
public class ReadXML {
private File file;

public ReadXML(String filename){
File file=new File(filename);
this.file=file;
}
/**
......

Java¹Ø¼ü×Öfinal¡¢staticʹÓÃ×ܽ᡾ת¡¿

 Ò»¡¢final
        ¸ù¾Ý³ÌÐòÉÏÏÂÎÄ»·¾³£¬Java¹Ø¼ü×ÖfinalÓГÕâÊÇÎÞ·¨¸Ä±äµÄ”»òÕß“ÖÕ̬µÄ”º¬Ò壬Ëü¿ÉÒÔÐÞÊηdzéÏóÀà¡¢·Ç³éÏóÀà³ÉÔ±·½·¨ºÍ±äÁ¿¡£Äã¿ÉÄܳöÓÚÁ½ÖÖÀí½â¶øÐèÒª×èÖ¹¸Ä±ä£ºÉè¼Æ»òЧÂÊ¡£
        finalÀ಻Äܱ»¼Ì³Ð£ ......

java exception javaÒì³£»ã×Ü(3)

java exception ½â¾ö·½°¸ - ÎÒµÄÒì³£Íø|Òì³£|exception 770 - java.net.unknownhostException 771 - com.ibatis.struts.BeanActionException 772 - javax.servlet.jsp.JspException:Cannot find bean under name org.apache.struts.taglib.html.BEAN 773 - java.lang.NoClassDefFoundError:org apache commons lang Unhand ......

JAVAʵÀý½Ì³ÌÖ®5

½Ì³Ì5 ËãÊýÔËËãѧϰ³ÌÐò ѧϰĿ±ê 5.1¼òµ¥¼Ó·¨Ñ§Ï°³ÌÐò СѧÉúÔÚ¸Õ¸Õ¿ªÊ¼Ñ§Ï°ÊýѧÔËËãµÄʱºò£¬ÐèÒª²»¶ÏµØ½øÐз´¸´´óÁ¿µÄÁ·Ï°£¬²ÅÄܹ»Ñ¸ËÙÕÆÎÕÕⲿ·ÖÄÚÈÝ¡£ÏÂÃæ¿ª·¢Ò»¸ö¼òµ¥µÄ¼Ó·¨Ñ§Ï°³ÌÐò£¬Äܹ»²úÉú¼Ó·¨ÔËËãÈÃѧÉúÀ´Ñ§Ï°Ìá¸ß¡£ ±àд³ÌÐòÈçÏ£º 1 package lesson5; 2 3 public class Operation1 { 4 int number1; 5 ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ