```
import java.io.*;

public class ArrayApp{

    public static void main(String[] args){

        System.out.println("lllll");
    } // end main()
} // end class ArrayApp

```

i get this error when i run my application after compiling it. 

```
Exception in thread "main" java.lang.NoClassDefFoundError: ArrayApp
Caused by: java.lang.ClassNotFoundException: ArrayApp
        at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
Could not find the main class: ArrayApp.  Program will exit.

```