Ramanujan.java in a pgm

Ramanujan.java

public class Ramanujan

{

   public static void main(String[] args)

   {

      int N = Integer.parseInt(args[0]);

      for (int a = 1; a <= N; a++)

        {

         int a3 = a*a*a;

         if (a3 > N) break;

         for (int b = a; b <= N; b++)

           {

            int b3 = b*b*b;

            if (a3 + b3 > N) break;

            for (int c = a + 1; c <= N; c++)

              {

               int c3 = c*c*c;

               if (c3 > a3 + b3) break;

               for (int d = c; d <= N; d++)

               {

                  int d3 = d*d*d;

                  if (c3 + d3 > a3 + b3) break;

                  if (c3 + d3 == a3 + b3) {

                     System.out.print((a3+b3) + " = ");

                     System.out.print(a + "^3 + " + b + "^3 = ");

                     System.out.print(c + "^3 + " + d + "^3");

                     System.out.println();

                  }

               }

            }

         }

      }

   }

}