require 'color' black = Color::CMYK.new(0, 0, 0, 100) p black p (black == Color::RGB::Black) で、 #<Color::CMYK:0x401cba70 @y=0.0, @m=0.0, @c=0.0, @k=1.0> true</color::cmyk:0x401cba70>

Java FAQ：S021 Q-11 public class C2008062600 { C2008062600() { synchronized (this) { } } public static void main(String[] args) { new C2008062600(); } } 書けることは書けるらしい

#!/usr/bin/env perl use strict; use Parse::RecDescent; use Data::Dumper; $Parse::RecDescent::skip = ''; my $grammar = q{ inputs : /[a-z ]/ { print Data::Dumper::Dumper($item[1]); } }; my $parse = new Parse::RecDescent ($grammar); while (<>…