Okay, guys, I know this one will be very hard however while trying to finish this assignment I got overwhelmed and lost by the sheer size of it! Alrighty! Here are the instructions:
Modify the TaxReturn class with fields that hold a taxpayer’s Social Security number (snn), last name (last), first name (first), street address (address), city (city), state (state), zip code (zipCode), annual income (income), marital status (status), and tax liability (tax). Include a constructor that requires arguments that provide values for all the fields other than the tax liability. The constructor calculates the tax liability based on annual income and the percentages in the following table.

Income Single Married
0 - 20,000 15% 14%
20,001 - 50,000 22% 20%
50,001+ 30% 28%

In the TaxReturn class, also include a display method that displays all the TaxReturn data.

Implement the PrepareTax application that prompts a user for the data needed to create a TaxReturn. Continue to prompt the user for data as long as any of the following are true:

• The Social Security number is not in the correct format, with digits and dashes in the appropriate positions—for example, 999-99-9999.

• The zip code is not five digits.

• The marital status does not begin with one of the following: S, s, M, or m.

• The annual income is negative.

After all the input data is correct, create a TaxReturn object and then display its values.

An example of the program is shown below:

Enter your Social Security number
999-99-9999
Enter your first name
Jane
Enter your last name
Doe
Enter your address
1961 Mulberry Street
Enter your city
Springfield
Enter your state
Massachusetts
Enter your Zip code
01101
Enter marital status
Single
Enter your annual income
20000
Taxpayer ssn: 999-99-9999 Jane Doe
1961 Mulberry Street
Springfield, Massachusetts 01101
Marital status: S
Income: $20000.0 Tax: $3000.0

I also want to point out that this assignment has two different files with one being PrepareTax. java and the other being ReturnTax. java!