HW2 - bilekpe5

ItemStock.java

public modifier added:

• constructor
• IncreaseItemCount
• decreaseItemCount
• getCount
• getItem

constructor:

• null refItem -> IllegalArgumentException thrown

IncreaseItemCount:

• negative x -> IllegalArgumentException thrown

decreaseItemCount:

• negative x -> IllegalArgumentException thrown

Storage.java

constructor Storage(HashMap<Integer, ItemStock> stock):

• null stock -> IllegalArgumentException thrown

insertItems:

• null item -> IllegalArgumentException thrown