Coding part 2

For this last 2 weeks all of our group member are doing the coding part..after we finish create all of the classes, we face other problem from this program.. which is how to link one array list with other array list. We got this problem because we confuse how access the value from one array list and make it as the primary key to the array list and link it to other.Linking in this program is needed because we are making program that involving many classes that contain many different and important value.

To solve this problem , we ask our friend how to link the array list. the solution that our friend give is to find the variable that have in 2 or 3 different array so we can link it together. That solution very helpful for us ..we start to find that variable such as account number ,package number , service number and etc..