public double Executar(IOperacao operacao) { return(operacao.Executar()); }
public void ExecutarOperacao(IOperacao operacao) { ope = operacao; ope.Executar(); }
public double Executar(IOperacao operacao) { return(operacao.Executar()); }
public void ExecutarOperacao(IOperacao operacao) { ope = operacao; ope.Executar(); }