Java Stacktrace错误不支持的major.minor版本51.0 [英] Java Stacktrace error Unsupported major.minor version 51.0

问题描述

可能重复：

不支持的主要.minor版本51.0

我制作这个脚本，它给了我这个错误：

I made this script, and it gives me this error:

java.lang.UnsupportedClassVersionError: net/glitching/client : Unsupported major.minor version 51.0
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClassCond(Unknown Source)
    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)
Exception in thread "main" 

这是什么意思？这是我的代码......

What does it mean? This is my code...

package net.glitching;

import java.io.IOException;
import java.io.ObjectInputStream;
import java.net.Socket;

public class client {

    static Socket sock = null;

    public static void main(String[] args) {
        while (true) {
            try {
                sock = new Socket("localhost", 4000);
                ObjectInputStream in = new ObjectInputStream(sock.getInputStream());
            } 
            catch (IOException ex) {}
        }
    }

}

推荐答案

为Java 7编译的Java类文件具有主要/次要版本51/0。如果你有一个没有为Java 7准备的JVM实现，它会给你这个错误，指出我不知道如何解释和运行这个类文件。

Java class files compiled for Java 7 have Major/Minor versions 51/0. If you have a JVM implementation that wasn't prepared for Java 7, it would give you this error indicating "I don't know how to interpret and run this class file."

尝试编译较旧的JVM版本，或者升级JVM。

Try either compiling for an older JVM version, or upgrade your JVM.

希望这会有所帮助！

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