Weighing Machine
10 Points
getters-setters
Instructions
In this exercise you'll be modeling a weighing machine.
1. Create an initial state for the weighing machine
When initialized, the weighing machine should refer to its factory settings which is different for where the machine is sold. Thereby the machine should be able to be initialized with a precision and if it is metric or imperial.
Implement the WeighingMachine#initialize method which takes two arguments, precision which is an Int32 and metric which is a Bool.
The metric argument when true means that the machine should use the metric system, otherwise it should use the imperial system.
The initialize method set should also set the instance variable @weight to 0.0.
precision = 3
metric = true
vm = WeighingMachine.new(precision, metric)2. Allow the weighing machine to have a precision
To cater to different demands, we allow each weighing machine to be customized with a precision (the number of digits after the decimal separator).
Implement the WeighingMachine#precision getter method to return the precision of the weighing machine.
precision = 3
metric = true
vm = WeighingMachine.new(precision, metric)
vm.precision
# => 33. Allow the weight to be set on the weighing machine
Implement the WeighingMachine#weight property to allow the weight to be get and set:
precision = 3
metric = true
wm = WeighingMachine.new(precision, metric)
wm.weight = 60.5
wm.weight
# => 60.5
wm.weigh
# => 60.54. Allow the machine to be switch between metric and imperial units
Implement the WeighingMachine#metric= property to allow the unit to be set.
It should accept a boolean value.
precision = 3
metric = true
wm = WeighingMachine.new(precision, metric)
vm.weight = 60.5
wm.metric = false
vm.weigh
# => 133.377Weighing Machine
10 Points
getters-setters
Instructions
In this exercise you'll be modeling a weighing machine.
1. Create an initial state for the weighing machine
When initialized, the weighing machine should refer to its factory settings which is different for where the machine is sold. Thereby the machine should be able to be initialized with a precision and if it is metric or imperial.
Implement the WeighingMachine#initialize method which takes two arguments, precision which is an Int32 and metric which is a Bool.
The metric argument when true means that the machine should use the metric system, otherwise it should use the imperial system.
The initialize method set should also set the instance variable @weight to 0.0.
precision = 3
metric = true
vm = WeighingMachine.new(precision, metric)2. Allow the weighing machine to have a precision
To cater to different demands, we allow each weighing machine to be customized with a precision (the number of digits after the decimal separator).
Implement the WeighingMachine#precision getter method to return the precision of the weighing machine.
precision = 3
metric = true
vm = WeighingMachine.new(precision, metric)
vm.precision
# => 33. Allow the weight to be set on the weighing machine
Implement the WeighingMachine#weight property to allow the weight to be get and set:
precision = 3
metric = true
wm = WeighingMachine.new(precision, metric)
wm.weight = 60.5
wm.weight
# => 60.5
wm.weigh
# => 60.54. Allow the machine to be switch between metric and imperial units
Implement the WeighingMachine#metric= property to allow the unit to be set.
It should accept a boolean value.
precision = 3
metric = true
wm = WeighingMachine.new(precision, metric)
vm.weight = 60.5
wm.metric = false
vm.weigh
# => 133.377