class Truck {

  private double totalWeight;
  private double lastItemWeight;
  private double maxWeight;

  
  public Truck (double maxWeight) {
    this.totalWeight = 0.0;
    this.lastItemWeight = 0.0; 
    
    this.maxWeight = maxWeight;
   }
   
   
   public double getTotalWeight() {
   
     return totalWeight;
   
   }
   
   
   public boolean loadTruck (Weighable item) {
     if (item.getWeightInLbs() > lastItemWeight) return false;
     
     if ( (totalWeight+item.getWeightInLbs()) > maxWeight) return false;
  
     // totalWeight = totalWeight + item.getWeightInLbs(); 
     totalWeight += item.getWeightInLbs();
     lastItemWeight = item.getWeightInLbs();
   
     return true;
   
   }
   
   



}