minor major exception

[curious_programmer]

Hi,

I have created an applet called Firstapplet.java in a package called package_applet.
this package is placed in a folder called src.

I have put the FirstApplet.class file in the bin folder situated at the same level than the src folder.
I can not reach this file because i receive this error message" can not find the Firstapplet.class file.

Can you tell me which path i have to write in the "codebase" parameter of the FirsApplet.html file which is placed also in the package_applet package( which is under the src folder).

Other question, in another situation , i have received this message :

Exception: java.lang UnsupportedClass Version Error :FirstApplet :unsupported major.minor version 51.0

What kind of error is it?

How can i repare it?

Thanks a lot for your answer.

Best regards
curious_programmer

[Norm]

unsupported major.minor version 51.0

It was compiled with java version 1.7 and executed with an older version.
Either execute with version 1.7
or compile with older version of java