java date
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java.Text.SimpleDateFormat format = new java.Text.SimpleDateFormat("yyyy-MM-dd hh:mm:ss");//ÄãÏëÒªµÄ¸ñʽ
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format.format(new java.util.Date());//dateΪÈÕÆÚÐÍÊý¾Ý£¬¿ÉÒÔÈÎÒâʱ¼ä
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Character Classes
[abc] Simple character class
[a-zA-Z]   ......
java exception ½â¾ö·½°¸ - ÎÒµÄÒì³£Íø|Òì³£|exception 791 - java.lang.NoSuchMethodError 792 - RuntimeException 793 - org.hibernate.exception.SQLGrammarException 794 - Internal Error 795 - ×Ô¶¨ÒåÒì³£ 796 - org.dom4j.DocumentException 797 - java.net.SocketException 798 - Exception¶ÔÏó 799 - SQLE ......
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package common;
import java.io.*;
import java.util.ArrayList;
public class IOTest {
public static void main (String args[]) {
ReadDate();
WriteDate();
}
/**
* ¶ÁÈ¡Êý¾Ý
*/
public static void ReadDate() {
......
¹Ø¼ü×Ö: filter
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import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.image.BufferedImage;
import java.io.FileOutputStream;
import java.util.Random;
import com.sun.image.codec.jpeg.JPEGCodec;
import com.sun.image.codec.jpeg.JPEGImageEncoder;
/**
* ¹¦ÄÜÃèÊö ......