为什么无法在构造方法是使用泛型？

Question

/**

Created by Archer on 2016/3/29.

*/

public class GenericDemo02 {

    public static void main(String[] args) {

         Con<String> c= new Con<String>("Archer");

        System.out.println(c.getValue());

        System.out.println("hello");

    }

}

class Con<T>{

    private T value;

    public Con(T value) {

        this.value = value;

    }

    public T getValue() {

        return value;

    }

    public void setValue(T value) {

        this.value = value;

    }

}

编译器报错，jdk1.8

Exception in thread "main" java.lang.NoClassDefFoundError: Con

    at GenericDemo02.main(GenericDemo02.java:7)

    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

    at java.lang.reflect.Method.invoke(Method.java:483)

    at com.intellij.rt.execution.application.AppMain.main(AppMain.java:144)

Caused by: java.lang.ClassNotFoundException: Con

    at java.net.URLClassLoader$1.run(URLClassLoader.java:372)

    at java.net.URLClassLoader$1.run(URLClassLoader.java:361)

    at java.security.AccessController.doPrivileged(Native Method)

    at java.net.URLClassLoader.findClass(URLClassLoader.java:360)

    at java.lang.ClassLoader.loadClass(ClassLoader.java:424)

    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)

    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)

    ... 6 more

Answer 1

不要误解别人   con作为window底层保留字是不允许创建同名的文件夹和文佳，所以我们的java中也不允许

Answer 2

你Con这个类就是上面这样写的？那错误有二：1.Con前面没有Class2.Con后面没有<T>

Answer 3

应该是Con{...}