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1. ×Ö·û´®ÓÐÕûÐ͵ÄÏ໥ת»»
1   
2 String a = String.valueOf(2);   //integer to numeric string  
3 int i = Integer.parseInt(a); //numeric string to an int 
2. ÏòÎļþĩβÌí¼ÓÄÚÈÝ
01   
02 BufferedWriter out = null;  
03 try {  
04     out = new BufferedWriter(new FileWriter(”filename”, true));  
05     out.write(”aString”);  
06 } catch (IOException e) {  
07     // error processing code  
08 } finally {  
09     if (out != null) {  
10         out.close();  
11     }  
12 } 
3. µÃµ½µ±Ç°·½·¨µÄÃû×Ö
1 String methodName = Thread.currentThread().getStackTrace()[1].getMethodName(); 
4. ת×Ö·û´®µ½ÈÕÆÚ
1   
2 java.util.Date = java.text.DateFormat.getDateInstance().parse(date String); 
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1   
2 SimpleDateFormat format = new SimpleDateFormat( "dd.MM.yyyy" );  
3 Date date = format.parse( myString ); 
5. ʹÓÃJDBCÁ´½ÓOracle
01 public class OracleJdbcTest  
02 {  
03     String driverClass = "oracle.jdbc.driver.OracleDriver";  
04   
05     Connection con;  
06   
07     public void init(FileInputStream fs) throws ClassNotFoundException, SQLException, FileNotFoundException, IOException  
08     {  
09         Properties props = new Properties();  
10         props.load(fs);  
11         String url = props.getProperty("db.url");&nbs


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javaÓïÑÔÈçºÎµ÷ÓÃDLL

javaÓïÑÔµ÷ÓÃdllµÄ·½·¨£º
1¡£¼ÓÔØdll£¬±ØÐëÊǾ²Ì¬·½·¨¡£
    static{
System.loadLibrary(DllConstants.DLL_PATH);
  }
2¡£½«dllÖпª·¢µÄ½Ó¿ÚÉùÃ÷Ϊ±¾µØ½Ó¿Ú
   public native String[] getTxt();
   
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  ÔÚ¡¶java±à³Ì˼ÏëµÚÈý°æ¡·£¨³Âê»Åô ÈÄÈô骵ÈÒ룩µÄµÚÎåÕÂÒþ²Ø¾ßÌåʵÏÖÖУ¬5.4½ÚµÄ×îºóÒ»¶Î»°ÊÇ£º
  “ÕýÈçÇ°ÃæËùÌáµ½µÄ£¬Èç¹ûûÄÜΪÀà·ÃÎÊȨÏÞÖ¸¶¨Ò»¸ö·ÃÎÊÐÞÊηû£¬Ëü¾Í»áȱʡµÃµ½°ü·ÃÎÊȨÏÞ¡£ÕâÒâζןÃÀàµÄ¶ÔÏó¿ÉÒÔÓɰüÄÚÈÎºÎÆäËûÀàÀ´´´½¨£ ......

ʹÓÃcommÔÚjava³ÌÐòÖйÜÀí±¾µØ¶Ë¿Ú

ÔÚjava³ÌÐòÖÐ,ΪÁËʵÏÖͬ±¾µØÏµÍ³µÄÓ²¼þ¶Ë¿Ú(RS-232±ê×¼´®¿Ú/IEEE1284±ê×¼²¢¿Ú)ͨѶ,ĿǰÓÐÁ½¸ö·½·¨,µÚÒ»¸ö¾ÍÊÇÒÔǰ˵¹ýµÄ,ʹÓÃJNI¼¼Êõ×Ô¼ºÐ´Ò»¸öÓëjava³ÌÐòÏà¹ØµÄdll/soÎļþ,Õâ¸öÎļþ¿ÉÒÔÖ±½ÓºÍ±¾µØÏµÍ³Í¨ÐÅ,´Ó¶ø¹ÜÀí±¾µØ»úÆ÷µÄ¶Ë¿Ú,²»¹ýʹÓÃjava³ÌÐò¶À×ÔʵÏÖÒ»¸ö±È½ÏÍêÉÆµÄ¶Ë¿Ú¹ÜÀí½â¾ö·½°¸¶Ô¸öÈ˶øÑÔÊÇÒ»¸ö»¨·Ñ¾Þ´óÇÒ²»Ê ......

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package com.hongsoft.test;
import java.io.*;
//¶¨ÖƵÄÀà×°ÈëÆ÷
public class TestCompile extends ClassLoader
{
String _compiler;
String _classpath;
public static void main(String[] args)
{
new TestCompile();
}
public TestCompile()
{
super(ClassLoader.getSystemClassLoader());
//ĬÈϱàÒëÆ ......
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