ERROR IN RUNNING A JAVA APPLET

intern3t · Post by **intern3t** » 13 Feb 2012, 03:58

I was trying to run an applet with firefox browser.here is error i got.

Java Plug-in 1.6.0_20
Using JRE version 1.6.0_20-b02 Java HotSpot(TM) Client VM
User home directory = C:\Users\BLUE-WINGS
----------------------------------------------------
c:   clear console window
f:   finalize objects on finalization queue
g:   garbage collect
h:   display this help message
l:   dump classloader list
m:   print memory usage
o:   trigger logging
q:   hide console
r:   reload policy configuration
s:   dump system and deployment properties
t:   dump thread list
v:   dump thread stack
x:   clear classloader cache
0-5: set trace level to <n>
----------------------------------------------------


load: class DrawStringApplet.class not found.
java.lang.ClassNotFoundException: DrawStringApplet.class
	at sun.plugin2.applet.Applet2ClassLoader.findClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at sun.plugin2.applet.Plugin2ClassLoader.loadCode(Unknown Source)
	at sun.plugin2.applet.Plugin2Manager.createApplet(Unknown Source)
	at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source)
	at java.lang.Thread.run(Unknown Source)
Caused by: java.io.FileNotFoundException: C:\Users\BLUE-WINGS\Desktop\classes\DrawStringApplet\class.class (The system cannot find the path specified)
	at java.io.FileInputStream.open(Native Method)
	at java.io.FileInputStream.<init>(Unknown Source)
	at java.io.FileInputStream.<init>(Unknown Source)
	at sun.net.www.protocol.file.FileURLConnection.connect(Unknown Source)
	at sun.net.www.protocol.file.FileURLConnection.getInputStream(Unknown Source)
	at sun.plugin2.applet.Applet2ClassLoader.getBytes(Unknown Source)
	at sun.plugin2.applet.Applet2ClassLoader.access$000(Unknown Source)
	at sun.plugin2.applet.Applet2ClassLoader$1.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	... 7 more
Exception: java.lang.ClassNotFoundException: DrawStringApplet.class

Please how do i fix this?Thanks

l0ngb1t · Post by **l0ngb1t** » 13 Feb 2012, 06:51

source code ?

intern3t · Post by **intern3t** » 13 Feb 2012, 07:08

l0ngb1t wrote:source code ?

Code: Select all

import java.applet.Applet;    
import java.awt.Graphics; 
             
public class DrawStringApplet extends Applet {

  String input_from_page;

  public void init() {
    input_from_page = getParameter("String");
  }
  
  public void paint(Graphics g) {
    g.drawString(input_from_page, 50, 25);
  }
  
}

l0ngb1t · Post by **l0ngb1t** » 13 Feb 2012, 08:04

your code is correct however make sure that you name your file DrawStringApplet.java
compile using the command: javac DrawStringApplet.java
now DrawStringApplet.class will be created after its compiled
place it in the same directory as test html file and it open the html file.

I've used the following html code to test it

Code: Select all

<Html>
<Head>
</Head>
<Body>
<Applet Code="DrawStringApplet.class" width=200 Height=100>
<Param Name=String Value="some value"> 
</Applet>
</Body>
</Html>

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