judger-diagnose]v
 Kernel version: V100R001C00B090, released at 19:04:32 Apr  6 2018.
 Copyright @ 2011-2018 debugforces.com. All Rights Reserved.
judger-diagnose]

judger]j s 2
judger]
 -----------------------
     *Judge verdict*
 -----------------------
 SolutionId   :   2
 ProblemId    : 1000
 Lang.        : Java
 Run cases    :   1
 Failed cases :   1
 Time-used    : 110 ms
 Memory-used  : 12876 kb
 Return code  : 0x1    -------------》错误码为1
 Verdict      : Wrong Answer
 Submit Date  : 2012-02-20 18:39:29
 Username     : ACSolo
 Json Result  :
 -----------------------

java.lang.UnsupportedClassVersionError: Main : Unsupported major.minor version 52.0
	at java.lang.ClassLoader.defineClass1(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$000(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)
Could not find the main class: Main.  Program will exit.
Exception in thread "main"