Thread: My first java applet

Hi everyone, I know my code works when I run it in eclipse but it does not load in my browser. I have tried my best to find similar posts but none of the solutions helped me fix my problem.

I have Java Plug-in 1.6.0_31 for my Chrome / Firefox browser

I may have messed up the path trying to debug this problem.... but my current path is this:
C:\WINDOWS\system32;C:\Program Files\Java\jdk1.7.0_03\bin

I have jdk1.7.0_03, jdk1.7.0, and jdk1.6.0_31 installed, I have different ones because I tried to debug the problem myself...

In my Eclipse compiler I have tried editing the options: Window->Preferences->Java->Compiler and I have tried to compile my code as 1.7, 1.6.. etc. At the same time I would change the selected JRE used again trying to debug this problem... Window->Preferences->Java->Installed JREs.

this is my current Java code, I have tried other code samples as well, but this should work just as well...

import javax.swing.JApplet;
import java.awt.*;
 
public class Test extends JApplet {
 
    public void paint(Graphics gfx) {
    	gfx.drawString("HELLO THERE", 100, 100);
    }
 
}

Here's my HTML code, I've tried changing it several times also as other sources I have looked up suggested. But here is the simplest one:

<applet code="Test" width=1000 height=550>
</applet>

The error I recieve when trying to load my applet in a browser is this:

basic: Added progress listener: sun.plugin.util.GrayBoxPainter$GrayBoxProgressListener@125e2eb
basic: error: Test : Unsupported major.minor version 51.0.
java.lang.UnsupportedClassVersionError: Test : Unsupported major.minor version 51.0
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClassCond(Unknown Source)
	at java.lang.ClassLoader.defineClass(Unknown Source)
	at java.security.SecureClassLoader.defineClass(Unknown Source)
	at sun.plugin2.applet.Applet2ClassLoader.findClass(Unknown Source)
	at sun.plugin2.applet.Plugin2ClassLoader.loadClass0(Unknown Source)
	at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
	at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at sun.plugin2.applet.Plugin2ClassLoader.loadCode(Unknown Source)
	at sun.plugin2.applet.Plugin2Manager.createApplet(Unknown Source)
	at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source)
	at java.lang.Thread.run(Unknown Source)
Exception: java.lang.UnsupportedClassVersionError: Test : Unsupported major.minor version 51.0

I've tried to debug this myself and have failed.... I tried looking up the error and from what I read, I thought maybe it was because I was trying to use 1.y java to read 1.x compiled code.

If anyone can help me with this problem I would greatly appreciate it and if more information is needed I'll gladly give it.

I got one of my old computers from the garage and set everything up on it and I was able to get the applet working. I think this is a better option than debugging the issue with my laptop. Thanks for the reply Norm.