Write a Java method in the onlineShopper class

called mergeCarts, that will merge two

shopping carts into one. This method will

merge the two carts by transferring all items

from the smaller cart to the larger cart. If both

carts contain the same number of items then

just pick the first cart as the larger cart.

It's important not to create a new shoppingCart

instance inside the mergeCarts method.

Also, important to handle situations where one

or both shoppingCart instances are empty.

Only use methods from the Bag Class in your

implementation.

Inputs : Two shoppingCart instances

Output: one shoppingCart instance containing

items from both carts.

The answer should be in Java. Minor syntax

errors are not penalized.