OOP – Encapsulation – Q&A

class Padlock:
  private key
  private locked
  
  //Constructor for the Padlock class:
  procedure new(str_key,bool_locked):
    key = str_key       
    locked = bool_locked  
    
  public function unlock(combination):
    if combination==key:
       locked = False
       return True
    else:
      return False
      
  public procedure lock():
    locked = True
    
  public function getKey():
    return key
    
  public function setKey(combination):
    if length(combination)==4:
      key = combination
      return True
    else:
      return False

What code would you write to instantiate two new padlocks: One called bikeLock that is already locked with a combination of 4321 and one called gardenShedLock that is unlocked with a combination of 1234?

Explain using an example from the above code for the Padlock class, what is meant by encapsulation.