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class Peca | |
def self.iniciar | |
@pecas = (0..6).collect {|lado1| | |
(lado1..6).collect {|lado2| Peca.new(lado1, lado2) } | |
}.flatten.shuffle | |
end | |
def self.proxima | |
@pecas.pop | |
end |
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class Foo | |
def initialize(&block) | |
@block = block | |
end | |
def call | |
@block.call | |
end | |
alias [] call | |
end |
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def should_behave_like_resource(opts = {}) | |
before :each do | |
@opts = opts | |
end | |
def class_for(str) | |
str.capitalize.constantize | |
end | |
def clazz |
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# encoding: utf-8 | |
module BrazilianDate | |
def use_in_brazilian_format(*fields) | |
unless methods.include?(:validate_dates) | |
validate :validate_dates | |
define_method :validate_dates do | |
(@date_errors ||= {}).each_pair do |field, message| | |
errors.add("#{field}_br".to_sym, message) | |
end |
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getattr(drew, "battle_cry")() |
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def total | |
soma = 0 | |
itens_orcamento.each {|item| soma += item.total } | |
soma | |
end | |
def total | |
itens_orcamento.map {|item| item.total }.sum | |
end | |
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/* Exemplos de testes (emulando o modo procedural) em Java */ | |
/* Arquivo: FatorialTest.java */ | |
package exercicio13; | |
import static exercicio13.Fatorial.fatorial; | |
import static org.junit.Assert.*; | |
import org.junit.Test; |
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# Arquivo fatorial_spec.rb | |
require './fatorial' | |
describe 'fatorial' do | |
it 'calcula fatorial' do | |
fatorial(0).should == 1 | |
fatorial(1).should == 1 | |
fatorial(2).should == 2 | |
fatorial(3).should == 6 |
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Lista 1 de orientação a objetos | |
------------------------------- | |
Utilizando TDD, elabore, em Java e em Ruby, os programas a seguir, utilizando | |
orientação a objetos: | |
1) Crie uma classe que modele uma bola e permita trocar e consultar a cor da bola. A | |
cor da bola é obrigatória. |
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public class Numero { | |
public long fatorial(long n) { | |
if (n == 0) | |
return 1; | |
return n * fatorial(n - 1); | |
} | |
} |
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