Homework Answers

1.The user shall be able to enter the following values: a.Gross monthly income (before deductions). b.monthly tax deducted. c.monthly expenditures in each of the following categories: i.Groceries ii.Water and lights iii.Travel costs (including petrol) iv.Cell phone and telephone v. Other expenses 2.The user shall be able to choose between renting accommodation or buying a property. 3.If the user selects to rent, the user shall be able to enter the monthly rental amount. 4.If the user selects to buy a property, the user shall be required to enter the following values for a home loan:a.Purchase price of property. b.Total deposit. c.Interest rate (percentage). d.Number of months to repay (between 240 and 360) 5.The software shall calculate the monthly home loan repayment for buying a property based on the values that the user entered.6.If the monthly home loan repayment is more than a third of the user’s gross monthly income, the software shall alert the user that approval of the home loan is unlikely.

Write a Java program to do the following, using Object Class and Driver Class

a) Read two-dimensional array (3 x3).

b) Find the diagonal elements of the array.

Write a Java program to obtain transpose of a 4 x 4 matrix. The Transpose of the matrix is obtained by exchanging the elements of each row. With the elements of the corresponding column. using Object Class and Driver Class

Designing module for managing collection of product type data

This solution code should contain definition for product model along with it’s properties. The program should also provide impelementations of CRUD operations for the Product model

This exercise contains project for solution code for Product entity and Product Repository classes

1. Product model class

• This class should provide common properties for the Product model.
• More on properties is provided in boilerplate code

1. ProductRepository class

• The primary responsibility of this class to manage CRUD operations for collection of Products
• The boilerplate contains outline of methods for different CRUD operatoins required to be managed for products

1. Product Storage

• The repository class should declare field as a collection object for allowing only the Product items to be added to the collection
• Choose the collection type basis the fact that product collection should not allow any other type of items.

1.      Suppose end system A wants to send a large file to end system B. At a very high level, describe how end system A creates packets from the file. When one of these packets arrives to a router, what information in the packet does the router use to determine the link onto which the packet is forwarded? Why is packet switching in the Internet analogous to driving from one city to another and asking directions along the way?