Java has many built-in features that allow for easier programming. Two of these features are the Mathmethods class and the StringBuilder class. These classes are useful because they provide prewritten constants and methods to use when writing code. For instance, if you needed to identify the larger of two numbers, the Math methods class can perform this operation. If you need to test whether a character is uppercase or lowercase, the StringBuilder class is useful. These are just two examples of the many operations that the Math methods and StringBuilder classes provide. You can explore additional operations as you continue to practice writing code.
In this Assignment, you use the StringBuilder classe to write a Java program that includes Java numeric and string input and output parameters. As you work through this program, utilize constants and variables to demonstrate the Java concepts of block and scope.
For this Assignment, submit the following program:
Create a TaxReturn class with fields that hold a taxpayer's Social Security number, last name, first name, middle initial, zip code, annual income, marital status, number of vehicles owned, number of pets owned, and number of toasters owned. The StringBuilder class must be used in this Assignment. The program will calculate the tax liability based on annual income and the percentages in the following table:
Marital Status
TOTAL Income in U.S. DollarsSingle
tax percentages
0-15000 25%single
24%married
15001-49001 50% single
49% married
49002 and up 75% single
74% married
Note: the Tax class does not have the main method and can be used for objects instantiations only.
Create ShowTax driver class with the main method. ShowTax class instantiates myTax object of the Tax type and sets up its fields to values entered by a user.
Prompt the user to enter the data needed to output a summary of the information gathered. Make sure to ask for the information in the format you would like it from the user and adhere to the following:
If the Social Security number contains more or less than 10 digits then reprompt for the information again
Marital status must be either ‘S' or ‘s' or ‘M' or ‘m'
No negative incomes are allowed, so the value must be above zero
Data set 1 to input:
Social Security number 888-99-5623, last name Jones, first name Mkuy, middle initial L, zip code 12345, annual income 73564, marital status m, number of vehicles owned 5.
Data set 2 to input:
Social Security number 899-99-5624, last name Jim, first name Jane, middle initial P, zip code 12344, annual income 23564, marital status M, number of vehicles owned 1.
Data set 3 to input:
The ShowTax class should have the DisplayTax method, which takes the data entered and uses the CalculateTax method of myTax object to calculate tax liability and then generates the output information to be shown to a user making use of StringBuilder class.
The comment headers provided in Unit 1 should be added and completed. Write about block and scope in the comments as you write codes in the Tax class and ShowTax class.