英文:
how can I run Java code while i have JDK and JRE installed on windows?
问题
Sure, here's the translated content:
我是Java编程的新手，现在正在测试一个用于测试的HelloWorld代码。我在控制台文件夹中使用命令javac HelloWorld.java，它会创建一个文件HelloWorld.class。当我运行命令java HelloWorld时，我得到以下错误：
> 错误：发生了JNI错误，请检查您的安装并重试
主线程中的异常"main" java.lang.UnsupportedClassVersionError: HelloWorld已由更新版本的Java Runtime编译（类文件版本58.0），而此版本的Java Runtime仅识别高达52.0的类文件版本...
我必须提到我已经安装了JDK 14.0.2和JRE（用于Minecraft和服务器 :)）。
英文:
I am new in java programming and now i am testing a helloworld code to test. I use the command
javac HelloWorld.java in the console folder it's create a file HelloWorld.class . When i am running the command java HelloWorld i get
> Error: A JNI error has occurred, please check your installation and try again
Exception in thread "main" java.lang.UnsupportedClassVersionError: HelloWorld has been compiled by a more recent version of the Java Runtime (class file version 58.0), this version of the Java Runtime only recognizes class file versions up to 52.0 ...
I have to mention that i have JDK 14.0.2 installed and JRE ( for minecraft and server 
)
答案1
得分: 1
不要运行 java HelloWorld.Java，而是运行 java HelloWorld，即不带 .java 扩展名。
英文:
Don't run java HelloWorld.Java instead
Run java HelloWorld ie without .java extensions.
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