Java - 使用Eclipse共享问题导出

Question

I have a java application that can run when I export a Executable Jar. "I" is bold because only I can run it. When I sent it to someone else in an email it wouldn't run for them, I'd like to mention they were both macs. Also I would like to know how to set it up professionally with a .app file with a favicon and name. I have scanned through the internet and stack overflow search and found nothing to suit me. I would also lime help with the search term I am most likely missing! :-)

Thanks In Advance,
Louis


BTW the title is a bit cryptic… didn't know how to word it :-).

When I type java -jar myprogram.jar

Exception in thread "main" java.lang.UnsupportedClassVersionError: Main : Unsupported major.minor version 51.0
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:615)
    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
    at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)
    at java.net.URLClassLoader.access$000(URLClassLoader.java:58)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:197)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:249)
    at org.eclipse.jdt.internal.jarinjarloader.JarRsrcLoader.main(JarRsrcLoader.java:56)

Answer 1

This exception means that you have compiled your program using java 1.7 (type java -version). In order to run your program on other computer you have to have java 1.7 installed there as well.

Please see the following topic, where you can find more info how to resolve it:

How to fix java.lang.UnsupportedClassVersionError: Unsupported major.minor version