/*
     inlined function with parameterized types - twice as good!
*/

interface function<A,B>
{
   B f(A x);
}

public class thincrust
{
   public static void main(String[] arg)
   {
      function<int,int> F1, F2;
      function<int,double> G;
      F1 = new function<int,int>()
	{
           public int f(int x) { return x*x; };
        };

      F2 = new function<int,int>()
	{
           public int f(int x) { return x+x; };
        };

      G = new function<int,double>()
        {
	   public double f(int x) { return x/3.14; }
        };

      // closure function
      function<int,int> Accumulator;
      Accumulator = new function<int,int>()
        {
           private int ax = 0;
           public int f(int x) { ax +=x; return ax; }
        };

      System.out.println(F1.f(5));
      System.out.println(F2.f(5));
      System.out.println(G.f(10));

      System.out.println(Accumulator.f(10));
      System.out.println(Accumulator.f(10));

   } // main
}