java 运行时出现了这个毛病C:\>java Re
Exception in thread "main" java.lang.UnsupportedClassVersionError: Re (Unsupport
ed major.minor version 50.0)
at java.lang.ClassLoader.defineClass0(Native Method)
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.access$100(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)应该是版本之类的问题吧 可是怎么解决啊 ??? 但编译为什么没有问题呢?谢谢帮忙!!
Exception in thread "main" java.lang.UnsupportedClassVersionError: Re (Unsupport
ed major.minor version 50.0)
at java.lang.ClassLoader.defineClass0(Native Method)
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.access$100(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)应该是版本之类的问题吧 可是怎么解决啊 ??? 但编译为什么没有问题呢?谢谢帮忙!!
这位同仁说的也在理,不如换一下啦,有版本高的话,也许可以避免啦,还有就是对api在classpath的引导多加一个,也是很不错的,对于你的调用也会少一些弯路啦
比如:c:\jdk1.5\bin\java.exe -cp . Re
然后用版本运行!
so ,建议你电脑里面只保存一个版本的JDK OR JRE!