ClassNotFoundException in Reflection code

My code is:

import java.lang.reflect.Method;
public class ReflectionHelloWorld1 {
    public static void main(String[] args){
        //create instance of "Class"
        Class<?> c = null;
        try{ c=Class.forName("myreflection.Foo"); }
        catch(Exception e){ e.printStackTrace(); }
        //create instance of "Foo"
        Foo f = null;
        try { f = (Foo) c.newInstance(); }
        catch (Exception e) { e.printStackTrace(); }
        f.print();
    } }
class Foo {
    public void print() { System.out.println("abc"); }
} 

I am getting this error:

java.lang.ClassNotFoundException: myreflection.Foo
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.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at a2.ReflectionHelloWorld1.main(ReflectionHelloWorld1.java:9)
java.lang.NullPointerException
at a2.ReflectionHelloWorld1.main(ReflectionHelloWorld1.java:18)
Exception in thread "main" java.lang.NullPointerException
at a2.ReflectionHelloWorld1.main(ReflectionHelloWorld1.java:23)

How to get rid of it? I want to know how to change settings to violate the concept of encapsulation in java during the compilation of reflection concept code.