Follow the incremental development methodology explained in this chapter to implement a pr...

Follow the incremental development methodology explained in this chapter to implement a program for the following problem statement. You must clearly write down the program tasks, create a design document with class descriptions, and draw the program diagram. Identify the development steps. State any assumptions you must make about the input. Articulate any design alternatives and justify your selection. Be sure to perform adequate testing at the end of each development step.

Problem Statement: Write an application that asks the user for his or her birth date and replies with the day of the week on which he or she was born.

We learned in this chapter that we can create a Date object for today?s date by writing

import java.util.*;

...

Date today = new Date();

To create a Date object for a date other than today, we can use the Date class from the java.sql package. (A more general and flexible way to deal with a date by using the GregorianCalendar class is introduced in Chap. 3.) Notice that there are two distinct classes with the same name Date, but from different packages?one from java.util and another from java.sql. To distinguish the two, we will use the fully qualified names. To create a new java.util.Date object, we can call the class method valueOf of the java.sql.Date class with the string representation of a date. The string representation must be in the format yyyy-MM-dd. For example, to create a java.util.Date object for July 4, 1776, we write

java.util.Date bdate = java.sql.Date.valueOf("1776-07-04");

Notice that valueOf is a class method of the Date class in the java.sql package. Calling it with a correct argument will return a java.util.Date object for the specified date.