A.java

package sample;

/**
 * http://d.hatena.ne.jp/Aileron/20100310/1268184123の(2)
 */
class A<A>
{
    class B<B>
    {
        public void out()
        {
            System.out.print(a);
            System.out.print("-");
            System.out.println(b);
        }

        private A a;
        private B b;
    }

    /**
     * @param args
     */
    public static void main(final String... args)
    {
    	sample.A<Integer>.B<String> b = (new sample.A<Integer>()).new B<String>();
    	b.a = 20;
    	b.b = "test";
    	b.out();
    }
}