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import java.lang.reflect.*;
interface one
{
int n(int N);
}
interface two
{
int nn(int N);
}
interface three
{
int nnn(int N);
}
class arse implements one, two
{
public int n(int N) { return N; }
public int nn(int N) { return N*2; }
}
class arsey implements two, one, three
{
public int n(int N) { return N*4; }
public int nn(int N) { return N*8; }
public int nnn(int N) { return N*16; }
}
public class InvokeInterface extends arse
{
int f ()
{
return flunk.nn(1);
}
static two flunk = new arse();
static three flunkey = new arsey();
public static void main(String[] s) throws Throwable
{
Class[] argtypes = {Integer.TYPE};
Method m = two.class.getMethod("nn", argtypes);
Object[] args = {new Integer(1)};
System.out.println(flunk.nn(1));
System.out.println(m.invoke(new arse(), args));
m = arse.class.getMethod("nn", argtypes);
System.out.println(m.invoke(new arse(), args));
m = two.class.getMethod("nn", argtypes);
System.out.println(m.invoke(new arsey(), args));
m = three.class.getMethod("nnn", argtypes);
System.out.println(m.invoke(new arsey(), args));
m = arsey.class.getMethod("nnn", argtypes);
System.out.println(m.invoke(new arsey(), args));
}
}
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