gistfile1.txt

ruby-1.8.7-p352 :001 > def one_arg(a); puts "one"; end
 => nil 
ruby-1.8.7-p352 :002 > def one_arg(a,b); puts "two"; end
 => nil 
ruby-1.8.7-p352 :003 > one_arg(1)
ArgumentError: wrong number of arguments (1 for 2)
	from (irb):3:in `evaluate'
	from org/jruby/RubyKernel.java:1011:in `eval'
	from /Volumes/v2/git/jruby/lib/ruby/1.8/irb.rb:158:in `eval_input'
	from /Volumes/v2/git/jruby/lib/ruby/1.8/irb.rb:271:in `signal_status'
	from /Volumes/v2/git/jruby/lib/ruby/1.8/irb.rb:155:in `eval_input'
	from org/jruby/RubyKernel.java:1337:in `loop'
	from org/jruby/RubyKernel.java:1115:in `catch'
	from /Volumes/v2/git/jruby/lib/ruby/1.8/irb.rb:154:in `eval_input'
	from /Volumes/v2/git/jruby/lib/ruby/1.8/irb.rb:71:in `start'
	from org/jruby/RubyKernel.java:1115:in `catch'
	from /Volumes/v2/git/jruby/lib/ruby/1.8/irb.rb:70:in `start'
	from /Volumes/v2/git/jruby/bin/jirb:13:in `(root)'
ruby-1.8.7-p352 :004 >