INTRODUCTION TO OBJECTS AND INPUT/OUTPUT - Java Programming: From Problem Analysis to Program Design - page 175

6. Write a program that calculates and prints the monthly paycheck for an
employee. The net pay is calculated after taking the following deductions:

Federal Income Tax: 15%

State Tax: 3.5%

Social Security Tax: 5.75%

Medicare/Medicaid Tax: 2.75%

Pension Plan: 5%

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Health Insurance: $75.00

Your program should prompt the user to input the gross amount and the
employee name. The output will be stored in a file. Format your output to
have two decimal places. A sample output follows:

Bill Robinson
Gross Amount: $ 3575.00
Federal Tax: $ 536.25
State Tax: $ 125.13
Social Security Tax: $ 205.56
Medicare/Medicaid Tax: $ 98.31
Pension Plan: $ 178.75
Health Insurance: $ 75.00
Net Pay: $ 2356.00
7. Three employees in a company are up for a special pay increase. You are
given a file, say Ch3_Ex7Data.txt , with the following data:
Miller Andrew 65789.87 5
Green Sheila 75892.56 6
Sethi Amit 74900.50 6.1
Each input line consists of an employee's last name, first name, current salary,
and percent pay increase. For example, in the first input line, the last name of
the employee is Miller , the first name is Andrew , the current salary is
65789.87 , and the pay increase is 5% . Write a program that reads data from
the specified file and stores the output in the file Ch3_Ex7Output.dat . For
each employee, the data must be output in the following form: firstName
lastName updatedSalary . Format the output of decimal numbers to two
decimal places.
8. Write a program that accepts as input the mass (in grams) and density
(in grams per cubic centimeters), and outputs the volume of the object using
the formula: density = mass / volume. Format your output to two decimal
places.