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

»ùÓÚJavaµÄ¼òÒײ¥·ÅÆ÷

 ÔÚJava AplicationÖÐʵÏֵļòÒײ¥·ÅÆ÷¡£À´Ô´ÓÚºúÇɶàÖ÷±àµÄ¡¶Java³ÌÐòÉè¼Æ°¸Àý½Ì³Ì¡·
ÎÒÊÔÔËÐйýÁË£¬ÆäÖÐµÄ “Ìýº£.wav”,“Ò»¶¨Òª°®Äã.wav”ÒôƵÎļþÒª·ÅÔÚclassËùÔÚµÄÎļþ¼ÐÖУ¬ÇÒÖ»Ö§³Öwav¸ñʽ
Ô´´úÂ룺
import java.applet.Applet;
import java.applet.AudioClip;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.net.*;
public class TestAudioClip extends JFrame implements ActionListener,ItemListener {
 
 
 
  boolean looping=false;
  
  
  String[] chioces={"Ìýº£.wav","Ò»¶¨Òª°®Äã.wav"};
  
  URL sound1File1=getClass().getResource(chioces[0]);
  URL sound2File2=getClass().getResource(chioces[1]);
  //private AudioClip sound1;
  
  AudioClip sound1=Applet.newAudioClip(sound1File1);
  AudioClip sound2=Applet.newAudioClip(sound2File2);
  AudioClip chosenClip=sound1;
  
  JComboBox soundFiles=new JComboBox(chioces);
  JButton playButton=new JButton("¿ªÊ¼²¥·Å");
  JButton loopButton=new JButton("Ñ­»·²¥·Å");
  JButton stopButton=new JButton("Í£Ö¹²¥·Å");
  JLabel status=new JLabel("ÇëÑ¡Ôñ²¥·ÅµÄÒôÀÖ");
  JPanel controlPanel=new JPanel();
  Container container=getContentPane();
  
  
  public TestAudioClip(){
   
   super("ÒôÀÖ²¥·ÅÆ÷");
   soundFiles.setBackground(Color.yellow);
   soundFiles.setSelectedIndex(0);
   soundFiles.addItemListener(this);
   
   playButton.addActionListener((java.awt.event.ActionListener) this);
   loopButton.addActionListener((java.awt.event.ActionListener) this);
   stopButton.addActionListener((java.awt.event.ActionListener) this);
   stopButton.setEnabled(false);
  


Ïà¹ØÎĵµ£º

ÔÚOracleÏ¿ª·¢Java³ÌÐòµÄ¾­µäÎÊÌâ½â´ð

 
ÎÊÌâÒ»£ºÈç±£¼ÓÔØJDBCÇý¶¯³ÌÐò£º
 
Õý³£ÎÒÃǼÓÔØÇý¶¯³ÌÐòÓÐÈý¸ö;¾¶£º
 
1.Class.forName(String)ÕâÏëµ±ÓÚclassLoaderÒ»¸öStringÖ¸¶¨µÄÀ࣬ÔÚ×°ÔØÊ±°Ñ¸ÃÇý¶¯³ÌÐòµÄ¾²Ì¬ÄÚÈݶ¼³õʼ»¯£¬ÆäʵÕâʱÇý¶¯³ÌÐòÀàµ÷ÓÃÁËDriverManager.registerDriver(driver)·½·¨¡£
 
2.ʹÓÃϵͳÊôÐÔ£ºSystem.getPro ......

javaÓ¦ÓÃtomcatʵÏÖhttps ssl°²È«Á¬½ÓµÄ·½·¨

ÔÚÕ⿪ʼ֮ǰ£¬ÎÒÃǵÃÏÈÁ˽âÒ»ÏÂʲôÊÇhttps¡£
https (Secure Hypertext Transfer Protocol) = °²È«³¬Îı¾´«ÊäЭÒé
httpsµÄÌØµãÊÇ£º
1.Êý¾Ý¼ÓÃÜ£¨SSL£© = Secure Socket Layer
2.Éí·ÝÈÏÖ¤
µ±ÄãµÄÏîÄ¿ÐèÒª¿¼Âǰ²È«ÐÔµÄʱºò£¬²¿·ÖÄ£¿é¿ÉÒÔÓõ½https¡£µ±È»ÕâЩ¶¼µÃµ½CA×¢²á£¬ÒªÇ®Ç®µÄŶ¡£
ÕâÀïÎÒÏë¸ø´ó¼Ò½éÉܸö²»ÊÕ·ÑµÄ ......

java µ÷ÓÃͨÓô洢¹ý³Ì£¨Sqlserver£©


package com.wfy.system.dao;   
  
import java.sql.CallableStatement;   
import java.sql.Connection;   
import java.sql.ResultSet;   
import java.sql.SQLException;   
import java.sql.Types;    ......

JavaÖÐequalºÍ==µÄ±È½Ï[zz]

×î½ü¿´µ½Ò»¸öÍøÓѹØÓÚ==ºÍequals ×öµÄ×ܽᣬ·ÖÏíÒ»ÏÂ
javaÖÐequals·½·¨ºÍ“==”µÄÇø±ð£º
equals ·½·¨ÊÇ java.lang.Object ÀàµÄ·½·¨¡£
ÓÐÁ½ÖÖÓ÷¨ËµÃ÷£º
£¨1£©¶ÔÓÚ×Ö·û´®±äÁ¿À´Ëµ£¬Ê¹ÓÓ==”ºÍ“equals()”·½·¨±È½Ï×Ö·û´®Ê±£¬Æä±È½Ï·½·¨²»Í¬¡£
“==”±È½ÏÁ½¸ö±äÁ¿±¾ÉíµÄÖµ£¬¼ ......

java ÈÕÆÚ¼ÆËã(¼¸Ììǰºó)

public class DateTest {
 public static void main(String[] args) {
  Date date = new Date(); // н¨Ò»¸öÈÕÆÚ
  SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd"); // ¸ñʽ»¯ÈÕÆÚ
  String beforeDate = sdf.format(getDateBefore(date, 10));
  System ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ