Scala Programming Projects

Implementing SimulatePlanApp.strSimulatePlan

In order to keep SimulatePlanApp.strMain small and readable, we are going to extract the code that is in charge of calling RetCalc.simulatePlan and return a human-readable string detailing the result of the simulation. We call this new function strSimulatePlan, and use it as shown in the following code:

def strSimulatePlan(returns: Returns, nbOfYearsSaving: Int, params: RetCalcParams): RetCalcResult[String] = {  RetCalc.simulatePlan(    returns = returns,    params = params,    nbOfMonthsSavings = nbOfYearsSaving * 12  ).map {    case (capitalAtRetirement, capitalAfterDeath) =>      val nbOfYearsInRetirement = params.nbOfMonthsInRetirement / 12      s"""         |Capital after $nbOfYearsSaving years of savings:            ${capitalAtRetirement.round} ...