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I keep getting errors when I attempt to open an embedded applet I made ( Firefox Browser )
Applet name is FirstApplet.class
Location www.jar
Here are the errors
java.lang.UnsupportedClassVersionError: FirstApplet : 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 java.net.URLClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.defineClass(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.defineClassHelper(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.access$100(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader$2.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at sun.plugin2.applet.Plugin2ClassLoader.findClassHelper(Unknown Source)
at sun.plugin2.applet.Applet2ClassLoader.findClass(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass0(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadCode(Unknown Source)
at sun.plugin2.applet.Plugin2Manager.createApplet(Unknown Source)
at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Exception: java.lang.UnsupportedClassVersionError: FirstApplet : Unsupported major.minor version 51.0
Here is the java code:
[source lang="java"]//Reference the required Java librariesimport java.applet.Applet;import java.awt.*;//The applet codepublic class FirstApplet extends Applet {; public void paint(Graphics g) { //Draw a rectangle width=250, height=100 g.drawRect(0,0,250,100); //Set the color to blue g.setColor(Color.blue); //Write the message to the web page g.drawString("Look at me, I'm a Java Applet!",10,50); }}[/source]
Here is the HTML:
[source lang="plain"]<HTML><HEAD><TITLE>My First Java Applet</TITLE></HEAD><BODY>Test: <BR><BR><applet code=FirstApplet.class archive="www.jar" width=250 height=100> <param name=foo value="bar"> </applet></BODY></HTML> [/source]
What am I doing wrong ?
Edited by Shippou, 26 June 2012 - 04:57 PM.
