jcreator刚安装完，运行的时候提示如下：

Question

Exception in thread "main" java.lang.NoClassDefFoundError: Exe1_3
Caused by: java.lang.ClassNotFoundException: Exe1_3
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
Could not find the main class: Exe1_3. Program will exit.
Press any key to continue...
然后我运行的代码是：

Answer 1

Exception in thread "main" java.lang.NoClassDefFoundError: Exe1_3

这个类没有编译出对应的字节码。。