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×î½üÓõ½Java¶¯Ì¬Éú³É±³¾°Í¸Ã÷µÄͼƬ¹¦ÄÜ£¬´ÓgifºÍpngÖÐÑ¡ÔñÁËpng¸ñʽ£¬¸öÖÐÔµÓɾͲ»ËµÁË£¬ÓÚÊǶ¯ÊÖµ½ÍøÉÏËÑË÷ÓÐÓõĴúÂë¡£ÏÖ°ÑËÑË÷½á¹û×ܽáÈçÏ£º
1. Éú³ÉpngͼƬ
int width = 400;
int height = 300;
// ´´½¨BufferedImage¶ÔÏó
BufferedImage image = new BufferedImage(width, height,     BufferedImage.TYPE_INT_RGB);
// »ñÈ¡Graphics2D
Graphics2D g2d = image.createGraphics();
// »­Í¼
g2d.setColor(new Color(255,0,0));
g2d.setStroke(new BasicStroke(1));
g2d.draw
//ÊͷŶÔÏó
g2d.dispose();
// ±£´æÎļþ    
ImageIO.write(image, "png", new File("c:/test.png"));
int width = 400;
int height = 300;
// ´´½¨BufferedImage¶ÔÏó
BufferedImage image = new BufferedImage(width, height,     BufferedImage.TYPE_INT_RGB);
// »ñÈ¡Graphics2D
Graphics2D g2d = image.createGraphics();
// »­Í¼
g2d.setColor(new Color(255,0,0));
g2d.setStroke(new BasicStroke(1));
g2d.draw
//ÊͷŶÔÏó
g2d.dispose();
// ±£´æÎļþ    
ImageIO.write(image, "png", new File("c:/test.png"));
  ÕâÖ»ÊÇ»æÖÆÍ¼ÐεĴúÂ룬Æä±³¾°ÊǺÚÉ«µÄ£¬ÈçºÎ²ÅÄܱ³¾°Í¸Ã÷ÄØ£¿¼ÌÐøËÑË÷£¬Ã»Óеõ½½á¹û£¬²»¹ýËѳöÒÔÏ´úÂ룬ËüÖ»ÊǰÑ×Ô¼º»æÖƵÄͼÐÎÉèÖÃΪ͸Ã÷»ò°ë͸Ã÷£¬±³¾°²¢²»Í¸Ã÷£¬ÈçÏ£º
2. »æÖưë͸Ã÷ͼÐÎ
int width = 400;
int height = 300;
// ´´½¨BufferedImage¶ÔÏó
BufferedImage image = new BufferedImage(width, height,     BufferedImage.TYPE_INT_RGB);
// »ñÈ¡Graphics2D
Graphics2D g2d = image.createGraphics();
// ÉèÖÃ͸Ã÷¶È
g2d.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_ATOP, 1.0f));  // 1.0fΪ͸Ã÷¶È £¬Öµ´Ó0-1.0£¬ÒÀ´Î±äµÃ²»Í¸Ã÷
// »­Í¼


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boolean false
char []
byte 0
short 0
int 0
long 0
float 0.0
double 0.0
reference null
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   µ«ÕâÑùÓиöÏÞÖÆ¾ÍÊÇÀàµÄ¶ÔÏó ......

ÔÚUnix/LinuxÉÏÁî(java)JVMÖ§³ÖÖÐÎÄÊä³ö

Ò»¡¢ÔÚUnix/LinuxÉÏÁîJVMÖ§³ÖÖÐÎÄÊä³ö
Èç¹ûÓû§Ê¹ÓõÄÊÇUNIXµÄÔ¶³Ì·þÎñÆ÷£¬¾Í»áÓöµ½ÖÐÎÄ×ÖÌåÔÚͼÏñÖÐÊä³öµÄÎÊÌâ£¬ÌØ±ðÊÇÓÉÓÚÐí¶à¹ÜÀíÔ±²¢²»Ï²»¶°ÑÖ÷»úµÄlocale¶¨Îªzh(ÒòΪÒâζ×Å¿ÉÄܳöÂÒÂë»ò±ØÐëװ΢ÐÎͼÐÎÖÕ¶ËÏózhcon£¬µ«ºÜ¶àÇé¿öÏÂÕâÑùµÄÌõ¼þ²¢²»¾ß±¸)¡£´ó²¿·Ö³ÌÐòÔ±µÄJAVA¾­Ñé¹¶ÏÞÓÚJSP½Å±¾³ÌÐò£¬²¿·ÖÊìÁ·µÄ³ÌÐòÔ±´ó¸Å¿ ......

¼ÆËãJavaÈÕÆÚ£­£­Ñ§Ï°ÔõÑù´´½¨ºÍʹÓÃÈÕÆÚ


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²»¹ÜÄãÊÇ´¦Àí²ÆÎñ½»Ò×»¹ÊǼƻ®×ÅÏÂÒ»²½µÄÐж¯£¬Äã¶¼ÒªÖªµÀÔõÑùÔÚJavaÖн¨Á¢£¬Ê¹ÓúÍÏÔʾÈÕÆÚ¡£ÕâÐèÒªÄã¼òµ¥µÄ²éÔÄÒ»ÏÂÏàÓ¦ÀàµÄAPI²Î¿¼£ºÒ»¸öÈÕÆÚ¿ÉÒÔ´´½¨3¸öÏà¹ØÀàµÄ¶ÔÏó¡£ÕâÆªÎÄÕ¸æËßÄãÄãÏëÒªÖªµÀµÄÄÚÈÝ¡£
Javaͳ¼Æ´Ó1970Äê1ÔÂ1ÈÕÆðµÄºÁÃëµÄÊýÁ¿±íʾÈÕÆÚ¡£Ò²¾ÍÊÇ˵£¬ÀýÈ磬1970Äê1ÔÂ2ÈÕ£¬ÊÇÔÚ1ÔÂ1ÈÕºóµÄ86£¬400£ ......

¼¸ÖÖÍøÒ³ÅÀÈ¡µÄ·½·¨ÓëʵÏÖ(Java)

Ò»¡¢Í¨¹ýHttpClient(apache commons-httpclient)·½Ê½£¬»ñÐíÍøÒ³ÄÚÈÝ£¬²¢½âÎö³öÐèÒªµÄ¶«Î÷¡£
      ÕâÖÖ·½·¨Ïà¶Ô±È½Ï¼òµ¥£¬ÒòΪcommons-httpclientÒѾ­×öÁ˺ܺõķâ×°£¬¼òµ¥µÄ´úÂëÈçÏ£º
// ¹¹ÔìHttpClientµÄʵÀý
HttpClient httpClient = new HttpClient();
HttpClientParams clientPar ......

java ²å¼þ¼ÓÔØ

package tao.hai.bing;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLClassLoader;
public class LoadJar {
 public static void main(String[] args)
 {
  Syst ......
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