[Oberon] Life without local procedures

Claudio Nieder private at claudio.ch
Sat Feb 24 14:02:57 CET 2018


> BTW, I finally found a solution for local methods in Java:
> While it is not possible to declare methods within methods, it is
> actually possible to declare local classes within methods. Therefore, I
> declared a local class with my "local" methods and then created a single
> instance of the local class to invoke them. Since methods within the
> local class can also access variables declared in the surrounding
> method, this allows for access to "intermediate" variables.
> While this seems weird at first sight, it is actually quite logical: in
> Java every method belongs to a class; thus, one can not just add new
> methods within a limited scope, but needs a separate class to collect them.

Maybe nicer using functions:

package test;

import java.util.function.Function;

public class Global
 public static void main(final String[] a)
  final int i=5;
  final Function<Integer,Integer> q=x -> {
   return x*i;

Claudio Nieder, Ruhestrasse 7, CH-8045 Zürich, Tel +4179 357 6743, www.claudio.ch

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