Tài liệu 330 Java Tips docx

Start Here! file:///C|/330_new/330_new/first_page.htm [2003-07-22 22:07:44] [...]... file:///C| /330_ new /330_ new/code_examples.htm (12 of 12) [2003-07-22 22:07:46] Applets Receive our newsletter with new tips! More than 13,500 subscribers (by July 2003) can not be wrong! They read our tips every week! To subscribe to "The Java FAQ Daily Tips" weekly edition newsletter send email with "subscribe" word in the header and the body (write just subscribe without ""!!!) to: javafaqtips-request@javafaq.nu... using: file:///C| /330_ new /330_ new/applets.htm (1 of 13) [2003-07-22 22:07:47] Applets String ss = System.getProperty(String key): java. version java. vendor java. vendor.url java. class.version os.name os.arch os.version file.separator path.separator line.separator Applets are prevented from reading these system properties: java. home java. class.path user.name user.home user.dir source: http:/ /java. sun.com/sfaq/... will solve your problem but these are a variety of good approaches for this type of issue http://www.javaworld.com/javaworld/javatips/jw-javatip101.html http://www.twf.ro/calculatoare/TricksJavaProgramGurus/ch1.htm http://www.galasoft-lb.ch/myjava/CommTest/backup00/ http://www.rgagnon.com/javadetails /java- 0181.html http://www.2nu.com/Doug/FAQs/InterframeIAC.html by Mickey Segal Q: I would like to ask... beans Receive our newsletter with new tips! More than 13,500 subscribers (by July 2003) can not be wrong! They read our tips every week! To subscribe to "The Java FAQ Daily Tips" weekly edition newsletter send email with "subscribe" word in the header and the body (write just subscribe without ""!!!) to: javafaqtips-request@javafaq.nu or on the web: http://www.javafaq.nu/plm2html/my_subscription.shtml... systems Receive our newsletter with new tips! More than 13,500 subscribers (by July 2003) can not be wrong! They read our tips every week! To subscribe to "The Java FAQ Daily Tips" weekly edition newsletter send email with "subscribe" word in the header and the body (write just subscribe without ""!!!) to: javafaqtips-request@javafaq.nu or on the web: http://www.javafaq.nu/plm2html/my_subscription.shtml... error output from my Java applets in IE? Answer: The file windows \Java\ Javalog.txt contains info about the last Applet loaded in IE All the System.out messages and exception information is stored here when Java Logging is enabled in IE To enable Java Logging start IE and select View/Options/Advanced Select "Enable Java Logging" check box click OK Restart IE In NT4 the file in C:\WINNT \Java Q: Is there... remember where Answer: by David Risner The following is from: http://developer.netscape.com/docs/technote /java/ getresource/getresource.html import java. applet.*; import java. awt.*; import java. io.*; public class ResourceDemoApplet extends Applet { Image m_image; public void init() { try { file:///C| /330_ new /330_ new/applets.htm (4 of 13) [2003-07-22 22:07:47] Applets InputStream in = getClass().getResourceAsStream("my.gif");... get the error java. lang.NoSuchMethodError: java/ lang/Double: method parseDouble(Ljava/lang/String;)D not found Which is weird as it compiles fine on Borland and with the JDK using applet viewer Anyone have any ideas what is going wrong? Answer: The parseDouble method was only added to Java in JDK 1.2 Browsers typically only support Java 1.1 If you have the JRE installed, you can run Java 1.2 applets... run within the same Java context-that is, they are all in the same virtual machine together-applets can invoke each other's methods The AppletContext class has methods for locating another applet by name, or retrieving all the applets in the current runtime environment import java. applet.*; import java. awt.*; import java. util.*; file:///C| /330_ new /330_ new/applets.htm... with the C++ code file:///C| /330_ new /330_ new/distributed_systems.htm (2 of 3) [2003-07-22 22:07:48] Distributed systems -Bret Hansen Q: I need to communicate some data (string) from a Java Applet to an other ASP page in the same frameset I would like to avoid a server roundtrip and do it all with JavaScript if possible Therefore I would like to call some javascript from a Java Applet It looks like it . Start Here! file:///C| /330_ new /330_ new/first_page.htm [2003-07-22 22:07:44]