Java Application-Employee Payroll System error PayrollSystemTest.java:56: error: ')'

[khollinghead]

Problem with program getting error-this is homework and I can get all files to compile except the final one. Any help is appreciated.


import java.util.Scanner;

// PayrollSystemTest.java
// Employee hierarchy test program.

public class PayrollSystemTest {
private static final int BONUS_MONTH = 11;

public static void main(String args[]) {
// create scanner object to get values from user
Scanner input = new Scanner(System.in);

System.out.println("Employees process polymorphically:\n");

SalariedEmployee salariedEmployee = getSalariedEmployeeObject(input);
HourlyEmployee hourlyEmployee = getHourlyEmployeeObject(input);
CommissionEmployee commissionEmployee = getCommissionEmployeeObject(input);
BasePlusCommissionEmployee basePlusCommissionEmployee = getBasePlusCommissionEmployeeObject(input);

System.out.println("Employees processed individually:\n");

System.out.printf("%s\n%s: $%,.2f\n\n", salariedEmployee, "earned", salariedEmployee.earnings());
System.out.printf("%s\n%s: $%,.2f\n\n", hourlyEmployee, "earned", hourlyEmployee.earnings());
System.out.printf("%s\n%s: $%,.2f\n\n", commissionEmployee, "earned", commissionEmployee.earnings());
System.out.printf("%s\n%s: $%,.2f\n\n", basePlusCommissionEmployee, "earned",
basePlusCommissionEmployee.earnings());

// create four-element Employee array
Employee employees[] = new Employee[4];

// initialize array with Employees
employees[0] = salariedEmployee;
employees[1] = hourlyEmployee;
employees[2] = commissionEmployee;
employees[3] = basePlusCommissionEmployee;

System.out.println("Employees processed polymorphically:\n");

// generically process each element in array employees
double earnings = 0;
for (Employee currentEmployee : employees) {
System.out.println(currentEmployee); // invokes toString

// determine whether element is a BasePlusCommissionEmployee
if (currentEmployee instanceof BasePlusCommissionEmployee) {
// downcast Employee reference to
// BasePlusCommissionEmployee reference
BasePlusCommissionEmployee employee = (BasePlusCommissionEmployee) currentEmployee;

double oldBaseSalary = employee.getBaseSalary();
employee.setBaseSalary(1.10 * oldBaseSalary);
System.out.printf("new base salary with 10%% increase is: $%,.2f\n", employee.getBaseSalary());
} // end if
// Add $100 bonus if birth month is November while calculating
// monthly salary
if (currentEmployee.getBirthDate().getMonth() == BONUS_MONTH) {
earnings = (currentEmployee.earnings() * 4) + 100;
} else {
earnings = currentEmployee.earnings() * 4;
}
// Print monthly salary
System.out.printf("earned $%,.2f\n\n", earnings);
} // end for

// get type name of each object in employees array
for (int j = 0; j < employees.length; j++)
System.out.printf("Employee %d is a %s\n", j, employees[j].getClass().getName());
} // end main

private static SalariedEmployee getSalariedEmployeeObject(Scanner input) {
System.out.println("Please enter first name.");
String firstName = input.next();
System.out.println("Please enter last name.");
String lastName = input.next();
System.out.println("Please enter SSN.");
String ssn = input.next();
System.out.println("Please enter Month of Birth.");
int month = input.nextInt();
System.out.println("Please enter Day of Birth.");
int day = input.nextInt();
System.out.println("Please enter Year of Birth.");
int year = input.nextInt();
System.out.println("Please enter Salary.");
double salary = input.nextDouble();
// create subclass objects
SalariedEmployee salariedEmployee = new SalariedEmployee(firstName, lastName, ssn, month, day, year, salary);
return salariedEmployee;
}

private static HourlyEmployee getHourlyEmployeeObject(Scanner input) {
System.out.println("\nHourly Employee Details");
System.out.println("Please enter first name.");
String firstName = input.next();
System.out.println("Please enter last name.");
String lastName = input.next();
System.out.println("Please enter SSN.");
String ssn = input.next();
System.out.println("Please enter Month of Birth.");
int month = input.nextInt();
System.out.println("Please enter Day of Birth.");
int day = input.nextInt();
System.out.println("Please enter Year of Birth.");
int year = input.nextInt();
System.out.println("Please enter hourly wages.");
double hourlyWages = input.nextDouble();
System.out.println("Please enter hours worked.");
double hoursWorked = input.nextDouble();
HourlyEmployee hourlyEmployee = new HourlyEmployee(firstName, lastName, ssn, month, day, year, hourlyWages,
hoursWorked);
return hourlyEmployee;
}

private static CommissionEmployee getCommissionEmployeeObject(Scanner input) {
System.out.println("\nCommission Employee Details");
System.out.println("Please enter first name.");
String firstName = input.next();
System.out.println("Please enter last name.");
String lastName = input.next();
System.out.println("Please enter SSN.");
String ssn = input.next();
System.out.println("Please enter Month of Birth.");
int month = input.nextInt();
System.out.println("Please enter Day of Birth.");
int day = input.nextInt();
System.out.println("Please enter Year of Birth.");
int year = input.nextInt();
System.out.println("Please enter gross sales.");
double grossSales = input.nextDouble();
System.out.println("Please enter commission rate.");
double commissionRate = input.nextDouble();
CommissionEmployee commissionEmployee = new CommissionEmployee(firstName, lastName, ssn, month, day, year,
grossSales, commissionRate);
return commissionEmployee;
}

private static BasePlusCommissionEmployee getBasePlusCommissionEmployeeObject(Scanner input) {
System.out.println("\nBase Plus Commission Employee Details");
System.out.println("Please enter first name.");
String firstName = input.next();
System.out.println("Please enter last name.");
String lastName = input.next();
System.out.println("Please enter SSN.");
String ssn = input.next();
System.out.println("Please enter Month of Birth.");
int month = input.nextInt();
System.out.println("Please enter Day of Birth.");
int day = input.nextInt();
System.out.println("Please enter Year of Birth.");
int year = input.nextInt();
System.out.println("Please enter gross sales.");
double grossSales = input.nextDouble();
System.out.println("Please enter commission rate.");
double commissionRate = input.nextDouble();
System.out.println("Please enter base salary.");
double baseSalary = input.nextDouble();
BasePlusCommissionEmployee basePlusCommissionEmployee = new BasePlusCommissionEmployee(firstName, lastName,
ssn, month, day, year, grossSales, commissionRate, baseSalary);
return basePlusCommissionEmployee;
}
} // end class PayrollSystemTest

[Fubarable]

Problem with program getting error-this is homework and I can get all files to compile except the final one. Any help is appreciated.

When posting code in the forum, please use code tags around well formatted code to allow us to be able to better be able to read and understand your code. The tag [code] goes above your posted code block, and the tag [/code] goes below it.

Your question heading states, "Java Application-Employee Payroll System error PayrollSystemTest.java:56: error: ')'"

Can you post your complete error message, and can you indicate to us in some way exactly which line is the one the message is talking about, line 56?

Note, your code with code tags added:

import java.util.Scanner;

// PayrollSystemTest.java
// Employee hierarchy test program.

public class PayrollSystemTest {
	private static final int BONUS_MONTH = 11;

	public static void main(String args[]) {
		// create scanner object to get values from user
		Scanner input = new Scanner(System.in);

		System.out.println("Employees process polymorphically:\n");

		SalariedEmployee salariedEmployee = getSalariedEmployeeObject(input);
		HourlyEmployee hourlyEmployee = getHourlyEmployeeObject(input);
		CommissionEmployee commissionEmployee = getCommissionEmployeeObject(input);
		BasePlusCommissionEmployee basePlusCommissionEmployee = getBasePlusCommissionEmployeeObject(input);

		System.out.println("Employees processed individually:\n");

		System.out.printf("%s\n%s: $%,.2f\n\n", salariedEmployee, "earned", salariedEmployee.earnings());
		System.out.printf("%s\n%s: $%,.2f\n\n", hourlyEmployee, "earned", hourlyEmployee.earnings());
		System.out.printf("%s\n%s: $%,.2f\n\n", commissionEmployee, "earned", commissionEmployee.earnings());
		System.out.printf("%s\n%s: $%,.2f\n\n", basePlusCommissionEmployee, "earned",
				basePlusCommissionEmployee.earnings());

		// create four-element Employee array
		Employee employees[] = new Employee[4];

		// initialize array with Employees
		employees[0] = salariedEmployee;
		employees[1] = hourlyEmployee;
		employees[2] = commissionEmployee;
		employees[3] = basePlusCommissionEmployee;

		System.out.println("Employees processed polymorphically:\n");

		// generically process each element in array employees
		double earnings = 0;
		for (Employee currentEmployee : employees) {
			System.out.println(currentEmployee); // invokes toString

			// determine whether element is a BasePlusCommissionEmployee
			if (currentEmployee instanceof BasePlusCommissionEmployee) {
				// downcast Employee reference to
				// BasePlusCommissionEmployee reference
				BasePlusCommissionEmployee employee = (BasePlusCommissionEmployee) currentEmployee;

				double oldBaseSalary = employee.getBaseSalary();
				employee.setBaseSalary(1.10 * oldBaseSalary);
				System.out.printf("new base salary with 10%% increase is: $%,.2f\n", employee.getBaseSalary());
			} // end if
				// Add $100 bonus if birth month is November while calculating
				// monthly salary
			if (currentEmployee.getBirthDate().getMonth() == BONUS_MONTH) {
				earnings = (currentEmployee.earnings() * 4) + 100;
			} else {
				earnings = currentEmployee.earnings() * 4;
			}
			// Print monthly salary
			System.out.printf("earned $%,.2f\n\n", earnings);
		} // end for

		// get type name of each object in employees array
		for (int j = 0; j < employees.length; j++)
			System.out.printf("Employee %d is a %s\n", j, employees[j].getClass().getName());
	} // end main

	private static SalariedEmployee getSalariedEmployeeObject(Scanner input) {
		System.out.println("Please enter first name.");
		String firstName = input.next();
		System.out.println("Please enter last name.");
		String lastName = input.next();
		System.out.println("Please enter SSN.");
		String ssn = input.next();
		System.out.println("Please enter Month of Birth.");
		int month = input.nextInt();
		System.out.println("Please enter Day of Birth.");
		int day = input.nextInt();
		System.out.println("Please enter Year of Birth.");
		int year = input.nextInt();
		System.out.println("Please enter Salary.");
		double salary = input.nextDouble();
		// create subclass objects
		SalariedEmployee salariedEmployee = new SalariedEmployee(firstName, lastName, ssn, month, day, year, salary);
		return salariedEmployee;
	}

	private static HourlyEmployee getHourlyEmployeeObject(Scanner input) {
		System.out.println("\nHourly Employee Details");
		System.out.println("Please enter first name.");
		String firstName = input.next();
		System.out.println("Please enter last name.");
		String lastName = input.next();
		System.out.println("Please enter SSN.");
		String ssn = input.next();
		System.out.println("Please enter Month of Birth.");
		int month = input.nextInt();
		System.out.println("Please enter Day of Birth.");
		int day = input.nextInt();
		System.out.println("Please enter Year of Birth.");
		int year = input.nextInt();
		System.out.println("Please enter hourly wages.");
		double hourlyWages = input.nextDouble();
		System.out.println("Please enter hours worked.");
		double hoursWorked = input.nextDouble();
		HourlyEmployee hourlyEmployee = new HourlyEmployee(firstName, lastName, ssn, month, day, year, hourlyWages,
				hoursWorked);
		return hourlyEmployee;
	}

	private static CommissionEmployee getCommissionEmployeeObject(Scanner input) {
		System.out.println("\nCommission Employee Details");
		System.out.println("Please enter first name.");
		String firstName = input.next();
		System.out.println("Please enter last name.");
		String lastName = input.next();
		System.out.println("Please enter SSN.");
		String ssn = input.next();
		System.out.println("Please enter Month of Birth.");
		int month = input.nextInt();
		System.out.println("Please enter Day of Birth.");
		int day = input.nextInt();
		System.out.println("Please enter Year of Birth.");
		int year = input.nextInt();
		System.out.println("Please enter gross sales.");
		double grossSales = input.nextDouble();
		System.out.println("Please enter commission rate.");
		double commissionRate = input.nextDouble();
		CommissionEmployee commissionEmployee = new CommissionEmployee(firstName, lastName, ssn, month, day, year,
				grossSales, commissionRate);
		return commissionEmployee;
	}

	private static BasePlusCommissionEmployee getBasePlusCommissionEmployeeObject(Scanner input) {
		System.out.println("\nBase Plus Commission Employee Details");
		System.out.println("Please enter first name.");
		String firstName = input.next();
		System.out.println("Please enter last name.");
		String lastName = input.next();
		System.out.println("Please enter SSN.");
		String ssn = input.next();
		System.out.println("Please enter Month of Birth.");
		int month = input.nextInt();
		System.out.println("Please enter Day of Birth.");
		int day = input.nextInt();
		System.out.println("Please enter Year of Birth.");
		int year = input.nextInt();
		System.out.println("Please enter gross sales.");
		double grossSales = input.nextDouble();
		System.out.println("Please enter commission rate.");
		double commissionRate = input.nextDouble();
		System.out.println("Please enter base salary.");
		double baseSalary = input.nextDouble();
		BasePlusCommissionEmployee basePlusCommissionEmployee = new BasePlusCommissionEmployee(firstName, lastName,
				ssn, month, day, year, grossSales, commissionRate, baseSalary);
		return basePlusCommissionEmployee;
	}
} // end class PayrollSystemTest

[khollinghead]

Thanks for the reply. I'm new to the forum and have reached the end.
I have a few .java files. Employee, Date, CommissionEmployee, BasePlusCommission, HourlyEmployee, SalariedEmployee and then PayrollSystemTest.
All files compile except the PayrollSystemTest.

Error Code is

PayrollSystemTest.java:56: error: cannot find symbol
if (currentEmployee.getBirthDate().getMonth() == BONUS_MONTH) {
^
symbol: method getMonth()
location: class String
PayrollSystemTest.java:86: error: constructor SalariedEmployee in class SalariedEmployee cannot be applied to given types;
SalariedEmployee salariedEmployee = new SalariedEmployee(firstName, lastName, ssn, month, day, year, salary);
^
required: String,String,String,double,String,int
found: String,String,String,int,int,int,double
reason: actual and formal argument lists differ in length
PayrollSystemTest.java:108: error: constructor HourlyEmployee in class HourlyEmployee cannot be applied to given types;
HourlyEmployee hourlyEmployee = new HourlyEmployee(firstName, lastName, ssn, month, day, year, hourlyWages,
^
required: String,String,String,double,double,String,int
found: String,String,String,int,int,int,double,double
reason: actual and formal argument lists differ in length
PayrollSystemTest.java:131: error: constructor CommissionEmployee in class CommissionEmployee cannot be applied to given types;
CommissionEmployee commissionEmployee = new CommissionEmployee(firstName, lastName, ssn, month, day, year,
^
required: String,String,String,double,double,String,int
found: String,String,String,int,int,int,double,double
reason: actual and formal argument lists differ in length
PayrollSystemTest.java:156: error: constructor BasePlusCommissionEmployee in class BasePlusCommissionEmployee cannot be applied to given types;
BasePlusCommissionEmployee basePlusCommissionEmployee = new BasePlusCommissionEmployee(firstName, lastName,
^
required: String,String,String,double,double,double,String,i nt
found: String,String,String,int,int,int,double,double,dou ble
reason: actual and formal argument lists differ in length
5 errors

----jGRASP wedge2: exit code for process is 1.
----jGRASP: operation complete.

Code follows. Hope this is correct.


Error code is



[import java.util.Scanner;

// PayrollSystemTest.java
// Employee hierarchy test program.

public class PayrollSystemTest {
private static final int BONUS_MONTH = 11;

public static void main(String args[]) {
// create scanner object to get values from user
Scanner input = new Scanner(System.in);

System.out.println("Employees process polymorphically:\n");

SalariedEmployee salariedEmployee = getSalariedEmployeeObject(input);
HourlyEmployee hourlyEmployee = getHourlyEmployeeObject(input);
CommissionEmployee commissionEmployee = getCommissionEmployeeObject(input);
BasePlusCommissionEmployee basePlusCommissionEmployee = getBasePlusCommissionEmployeeObject(input);

System.out.println("Employees processed individually:\n");

System.out.printf("%s\n%s: $%,.2f\n\n", salariedEmployee, "earned", salariedEmployee.earnings());
System.out.printf("%s\n%s: $%,.2f\n\n", hourlyEmployee, "earned", hourlyEmployee.earnings());
System.out.printf("%s\n%s: $%,.2f\n\n", commissionEmployee, "earned", commissionEmployee.earnings());
System.out.printf("%s\n%s: $%,.2f\n\n", basePlusCommissionEmployee, "earned",
basePlusCommissionEmployee.earnings());

// create four-element Employee array
Employee employees[] = new Employee[4];

// initialize array with Employees
employees[0] = salariedEmployee;
employees[1] = hourlyEmployee;
employees[2] = commissionEmployee;
employees[3] = basePlusCommissionEmployee;

System.out.println("Employees processed polymorphically:\n");

// generically process each element in array employees
double earnings = 0;
for (Employee currentEmployee : employees) {
System.out.println(currentEmployee); // invokes toString

// determine whether element is a BasePlusCommissionEmployee
if (currentEmployee instanceof BasePlusCommissionEmployee) {
// downcast Employee reference to
// BasePlusCommissionEmployee reference
BasePlusCommissionEmployee employee = (BasePlusCommissionEmployee) currentEmployee;

double oldBaseSalary = employee.getBaseSalary();
employee.setBaseSalary(1.10 * oldBaseSalary);
System.out.printf("new base salary with 10%% increase is: $%,.2f\n", employee.getBaseSalary());
} // end if
// Add $100 bonus if birth month is November while calculating
// monthly salary
if (currentEmployee.getBirthDate().getMonth() == BONUS_MONTH) {
earnings = (currentEmployee.earnings() * 4) + 100;
} else {
earnings = currentEmployee.earnings() * 4;
}
// Print monthly salary
System.out.printf("earned $%,.2f\n\n", earnings);
} // end for

// get type name of each object in employees array
for (int j = 0; j < employees.length; j++)
System.out.printf("Employee %d is a %s\n", j, employees[j].getClass().getName());
} // end main

private static SalariedEmployee getSalariedEmployeeObject(Scanner input) {
System.out.println("Please enter first name.");
String firstName = input.next();
System.out.println("Please enter last name.");
String lastName = input.next();
System.out.println("Please enter SSN.");
String ssn = input.next();
System.out.println("Please enter Month of Birth.");
int month = input.nextInt();
System.out.println("Please enter Day of Birth.");
int day = input.nextInt();
System.out.println("Please enter Year of Birth.");
int year = input.nextInt();
System.out.println("Please enter Salary.");
double salary = input.nextDouble();
// create subclass objects
SalariedEmployee salariedEmployee = new SalariedEmployee(firstName, lastName, ssn, month, day, year, salary);
return salariedEmployee;
}

private static HourlyEmployee getHourlyEmployeeObject(Scanner input) {
System.out.println("\nHourly Employee Details");
System.out.println("Please enter first name.");
String firstName = input.next();
System.out.println("Please enter last name.");
String lastName = input.next();
System.out.println("Please enter SSN.");
String ssn = input.next();
System.out.println("Please enter Month of Birth.");
int month = input.nextInt();
System.out.println("Please enter Day of Birth.");
int day = input.nextInt();
System.out.println("Please enter Year of Birth.");
int year = input.nextInt();
System.out.println("Please enter hourly wages.");
double hourlyWages = input.nextDouble();
System.out.println("Please enter hours worked.");
double hoursWorked = input.nextDouble();
HourlyEmployee hourlyEmployee = new HourlyEmployee(firstName, lastName, ssn, month, day, year, hourlyWages,
hoursWorked);
return hourlyEmployee;
}

private static CommissionEmployee getCommissionEmployeeObject(Scanner input) {
System.out.println("\nCommission Employee Details");
System.out.println("Please enter first name.");
String firstName = input.next();
System.out.println("Please enter last name.");
String lastName = input.next();
System.out.println("Please enter SSN.");
String ssn = input.next();
System.out.println("Please enter Month of Birth.");
int month = input.nextInt();
System.out.println("Please enter Day of Birth.");
int day = input.nextInt();
System.out.println("Please enter Year of Birth.");
int year = input.nextInt();
System.out.println("Please enter gross sales.");
double grossSales = input.nextDouble();
System.out.println("Please enter commission rate.");
double commissionRate = input.nextDouble();
CommissionEmployee commissionEmployee = new CommissionEmployee(firstName, lastName, ssn, month, day, year,
grossSales, commissionRate);
return commissionEmployee;
}

private static BasePlusCommissionEmployee getBasePlusCommissionEmployeeObject(Scanner input) {
System.out.println("\nBase Plus Commission Employee Details");
System.out.println("Please enter first name.");
String firstName = input.next();
System.out.println("Please enter last name.");
String lastName = input.next();
System.out.println("Please enter SSN.");
String ssn = input.next();
System.out.println("Please enter Month of Birth.");
int month = input.nextInt();
System.out.println("Please enter Day of Birth.");
int day = input.nextInt();
System.out.println("Please enter Year of Birth.");
int year = input.nextInt();
System.out.println("Please enter gross sales.");
double grossSales = input.nextDouble();
System.out.println("Please enter commission rate.");
double commissionRate = input.nextDouble();
System.out.println("Please enter base salary.");
double baseSalary = input.nextDouble();
BasePlusCommissionEmployee basePlusCommissionEmployee = new BasePlusCommissionEmployee(firstName, lastName,
ssn, month, day, year, grossSales, commissionRate, baseSalary);
return basePlusCommissionEmployee;
}
} // end class PayrollSystemTest
]

[Fubarable]

Please re-read about code tags. Please edit your post above so that it's readable. If you go into advanced editing you can see what your post will look like before you post it.

[khollinghead]

Sorry. Not paying attention and worried about finishing this.

import java.util.Scanner;

// PayrollSystemTest.java
// Employee hierarchy test program.

public class PayrollSystemTest {
	private static final int BONUS_MONTH = 11;

	public static void main(String args[]) {
		// create scanner object to get values from user
		Scanner input = new Scanner(System.in);

		System.out.println("Employees process polymorphically:\n");

		SalariedEmployee salariedEmployee = getSalariedEmployeeObject(input);
		HourlyEmployee hourlyEmployee = getHourlyEmployeeObject(input);
		CommissionEmployee commissionEmployee = getCommissionEmployeeObject(input);
		BasePlusCommissionEmployee basePlusCommissionEmployee = getBasePlusCommissionEmployeeObject(input);

		System.out.println("Employees processed individually:\n");

		System.out.printf("%s\n%s: $%,.2f\n\n", salariedEmployee, "earned", salariedEmployee.earnings());
		System.out.printf("%s\n%s: $%,.2f\n\n", hourlyEmployee, "earned", hourlyEmployee.earnings());
		System.out.printf("%s\n%s: $%,.2f\n\n", commissionEmployee, "earned", commissionEmployee.earnings());
		System.out.printf("%s\n%s: $%,.2f\n\n", basePlusCommissionEmployee, "earned",
				basePlusCommissionEmployee.earnings());

		// create four-element Employee array
		Employee employees[] = new Employee[4];

		// initialize array with Employees
		employees[0] = salariedEmployee;
		employees[1] = hourlyEmployee;
		employees[2] = commissionEmployee;
		employees[3] = basePlusCommissionEmployee;

		System.out.println("Employees processed polymorphically:\n");

		// generically process each element in array employees
		double earnings = 0;
		for (Employee currentEmployee : employees) {
			System.out.println(currentEmployee); // invokes toString

			// determine whether element is a BasePlusCommissionEmployee
			if (currentEmployee instanceof BasePlusCommissionEmployee) {
				// downcast Employee reference to
				// BasePlusCommissionEmployee reference
				BasePlusCommissionEmployee employee = (BasePlusCommissionEmployee) currentEmployee;

				double oldBaseSalary = employee.getBaseSalary();
				employee.setBaseSalary(1.10 * oldBaseSalary);
				System.out.printf("new base salary with 10%% increase is: $%,.2f\n", employee.getBaseSalary());
			} // end if
				// Add $100 bonus if birth month is November while calculating
				// monthly salary
			if (currentEmployee.getBirthDate().getMonth() == BONUS_MONTH) {
				earnings = (currentEmployee.earnings() * 4) + 100;
			} else {
				earnings = currentEmployee.earnings() * 4;
			}
			// Print monthly salary
			System.out.printf("earned $%,.2f\n\n", earnings);
		} // end for

		// get type name of each object in employees array
		for (int j = 0; j < employees.length; j++)
			System.out.printf("Employee %d is a %s\n", j, employees[j].getClass().getName());
	} // end main

	private static SalariedEmployee getSalariedEmployeeObject(Scanner input) {
		System.out.println("Please enter first name.");
		String firstName = input.next();
		System.out.println("Please enter last name.");
		String lastName = input.next();
		System.out.println("Please enter SSN.");
		String ssn = input.next();
		System.out.println("Please enter Month of Birth.");
		int month = input.nextInt();
		System.out.println("Please enter Day of Birth.");
		int day = input.nextInt();
		System.out.println("Please enter Year of Birth.");
		int year = input.nextInt();
		System.out.println("Please enter Salary.");
		double salary = input.nextDouble();
		// create subclass objects
		SalariedEmployee salariedEmployee = new SalariedEmployee(firstName, lastName, ssn, month, day, year, salary);
		return salariedEmployee;
	}

	private static HourlyEmployee getHourlyEmployeeObject(Scanner input) {
		System.out.println("\nHourly Employee Details");
		System.out.println("Please enter first name.");
		String firstName = input.next();
		System.out.println("Please enter last name.");
		String lastName = input.next();
		System.out.println("Please enter SSN.");
		String ssn = input.next();
		System.out.println("Please enter Month of Birth.");
		int month = input.nextInt();
		System.out.println("Please enter Day of Birth.");
		int day = input.nextInt();
		System.out.println("Please enter Year of Birth.");
		int year = input.nextInt();
		System.out.println("Please enter hourly wages.");
		double hourlyWages = input.nextDouble();
		System.out.println("Please enter hours worked.");
		double hoursWorked = input.nextDouble();
		HourlyEmployee hourlyEmployee = new HourlyEmployee(firstName, lastName, ssn, month, day, year, hourlyWages,
				hoursWorked);
		return hourlyEmployee;
	}

	private static CommissionEmployee getCommissionEmployeeObject(Scanner input) {
		System.out.println("\nCommission Employee Details");
		System.out.println("Please enter first name.");
		String firstName = input.next();
		System.out.println("Please enter last name.");
		String lastName = input.next();
		System.out.println("Please enter SSN.");
		String ssn = input.next();
		System.out.println("Please enter Month of Birth.");
		int month = input.nextInt();
		System.out.println("Please enter Day of Birth.");
		int day = input.nextInt();
		System.out.println("Please enter Year of Birth.");
		int year = input.nextInt();
		System.out.println("Please enter gross sales.");
		double grossSales = input.nextDouble();
		System.out.println("Please enter commission rate.");
		double commissionRate = input.nextDouble();
		CommissionEmployee commissionEmployee = new CommissionEmployee(firstName, lastName, ssn, month, day, year,
				grossSales, commissionRate);
		return commissionEmployee;
	}

	private static BasePlusCommissionEmployee getBasePlusCommissionEmployeeObject(Scanner input) {
		System.out.println("\nBase Plus Commission Employee Details");
		System.out.println("Please enter first name.");
		String firstName = input.next();
		System.out.println("Please enter last name.");
		String lastName = input.next();
		System.out.println("Please enter SSN.");
		String ssn = input.next();
		System.out.println("Please enter Month of Birth.");
		int month = input.nextInt();
		System.out.println("Please enter Day of Birth.");
		int day = input.nextInt();
		System.out.println("Please enter Year of Birth.");
		int year = input.nextInt();
		System.out.println("Please enter gross sales.");
		double grossSales = input.nextDouble();
		System.out.println("Please enter commission rate.");
		double commissionRate = input.nextDouble();
		System.out.println("Please enter base salary.");
		double baseSalary = input.nextDouble();
		BasePlusCommissionEmployee basePlusCommissionEmployee = new BasePlusCommissionEmployee(firstName, lastName,
				ssn, month, day, year, grossSales, commissionRate, baseSalary);
		return basePlusCommissionEmployee;
	}
} // end class PayrollSystemTest

[khollinghead]

ok I've corrected a view things. Here's the new code.

import java.util.Scanner;

// PayrollSystemTest.java
// Employee hierarchy test program.

public class PayrollSystemTest {
	private static final int BONUS_MONTH = 11;

	public static void main(String args[]) {
		// create scanner object to get values from user
		Scanner input = new Scanner(System.in);

		System.out.println("Employees process polymorphically:\n");

		SalariedEmployee salariedEmployee = getSalariedEmployeeObject(input);
		HourlyEmployee hourlyEmployee = getHourlyEmployeeObject(input);
		CommissionEmployee commissionEmployee = getCommissionEmployeeObject(input);
		BasePlusCommissionEmployee basePlusCommissionEmployee = getBasePlusCommissionEmployeeObject(input);

		System.out.println("Employees processed individually:\n");

		System.out.printf("%s\n%s: $%,.2f\n\n", salariedEmployee, "earned", salariedEmployee.earnings());
		System.out.printf("%s\n%s: $%,.2f\n\n", hourlyEmployee, "earned", hourlyEmployee.earnings());
		System.out.printf("%s\n%s: $%,.2f\n\n", commissionEmployee, "earned", commissionEmployee.earnings());
		System.out.printf("%s\n%s: $%,.2f\n\n", basePlusCommissionEmployee, "earned",
				basePlusCommissionEmployee.earnings());

		// create four-element Employee array
		Employee employees[] = new Employee[4];

		// initialize array with Employees
		employees[0] = salariedEmployee;
		employees[1] = hourlyEmployee;
		employees[2] = commissionEmployee;
		employees[3] = basePlusCommissionEmployee;

		System.out.println("Employees processed polymorphically:\n");

		// generically process each element in array employees
		double earnings = 0;
		for (Employee currentEmployee : employees) {
			System.out.println(currentEmployee); // invokes toString

			// determine whether element is a BasePlusCommissionEmployee
			if (currentEmployee instanceof BasePlusCommissionEmployee) {
				// downcast Employee reference to
				// BasePlusCommissionEmployee reference
				BasePlusCommissionEmployee employee = (BasePlusCommissionEmployee) currentEmployee;

				double oldBaseSalary = employee.getBaseSalary();
				employee.setBaseSalary(1.10 * oldBaseSalary);
				System.out.printf("new base salary with 10%% increase is: $%,.2f\n", employee.getBaseSalary());
			} // end if
				// Add $100 bonus if birth month is November while calculating
				// monthly salary
			if (currentEmployee.getBirthDate().getMonth() == BONUS_MONTH) {
				earnings = (currentEmployee.earnings() * 4) + 100;
			} else {
				earnings = currentEmployee.earnings() * 4;
			}
			// Print monthly salary
			System.out.printf("earned $%,.2f\n\n", earnings);
		} // end for

		// get type name of each object in employees array
		for (int j = 0; j < employees.length; j++)
			System.out.printf("Employee %d is a %s\n", j, employees[j].getClass().getName());
	} // end main

	private static SalariedEmployee getSalariedEmployeeObject(Scanner input) {
		System.out.println("Please enter first name.");
		String firstName = input.next();
		System.out.println("Please enter last name.");
		String lastName = input.next();
		System.out.println("Please enter SSN.");
		String ssn = input.next();
		System.out.println("Please enter Month of Birth.");
		int month = input.nextInt();
		System.out.println("Please enter Salary.");
		double salary = input.nextDouble();
		// create subclass objects
		SalariedEmployee salariedEmployee = new SalariedEmployee(firstName, lastName, ssn, birth, month, salary);
		return salariedEmployee;
	}

	private static HourlyEmployee getHourlyEmployeeObject(Scanner input) {
		System.out.println("\nHourly Employee Details");
		System.out.println("Please enter first name.");
		String firstName = input.next();
		System.out.println("Please enter last name.");
		String lastName = input.next();
		System.out.println("Please enter SSN.");
		String ssn = input.next();
		System.out.println("Please enter Month of Birth.");
		int month = input.nextInt();
		System.out.println("Please enter hourly wages.");
		double hourlyWages = input.nextDouble();
		System.out.println("Please enter hours worked.");
		double hoursWorked = input.nextDouble();
		HourlyEmployee hourlyEmployee = new HourlyEmployee(firstName, lastName, ssn, birth, month, hourlyWages,
				hoursWorked);
		return hourlyEmployee;
	}

	private static CommissionEmployee getCommissionEmployeeObject(Scanner input) {
		System.out.println("\nCommission Employee Details");
		System.out.println("Please enter first name.");
		String firstName = input.next();
		System.out.println("Please enter last name.");
		String lastName = input.next();
		System.out.println("Please enter SSN.");
		String ssn = input.next();
		System.out.println("Please enter Month of Birth.");
		int month = input.nextInt();
		System.out.println("Please enter gross sales.");
		double grossSales = input.nextDouble();
		System.out.println("Please enter commission rate.");
		double commissionRate = input.nextDouble();
		CommissionEmployee commissionEmployee = new CommissionEmployee(firstName, lastName, ssn, birth, month, 
      grossSales, commissionRate);
		return commissionEmployee;
	}

	private static BasePlusCommissionEmployee getBasePlusCommissionEmployeeObject(Scanner input) {
		System.out.println("\nBase Plus Commission Employee Details");
		System.out.println("Please enter first name.");
		String firstName = input.next();
		System.out.println("Please enter last name.");
		String lastName = input.next();
		System.out.println("Please enter SSN.");
		String ssn = input.next();
		System.out.println("Please enter Month of Birth.");
		int month = input.nextInt();
		System.out.println("Please enter gross sales.");
		double grossSales = input.nextDouble();
		System.out.println("Please enter commission rate.");
		double commissionRate = input.nextDouble();
		System.out.println("Please enter base salary.");
		double baseSalary = input.nextDouble();
		BasePlusCommissionEmployee basePlusCommissionEmployee = new BasePlusCommissionEmployee(firstName, lastName,
				ssn, birth, month, grossSales, commissionRate, baseSalary);
		return basePlusCommissionEmployee;
	}
} // end class PayrollSystemTest

errors are the same though

 ----jGRASP exec: javac -g PayrollSystemTest.java

PayrollSystemTest.java:56: error: cannot find symbol
			if (currentEmployee.getBirthDate().getMonth() == BONUS_MONTH) {
			                                  ^
  symbol:   method getMonth()
  location: class String
PayrollSystemTest.java:82: error: cannot find symbol
		SalariedEmployee salariedEmployee = new SalariedEmployee(firstName, lastName, ssn, birth, month, salary);
		                                                                                   ^
  symbol:   variable birth
  location: class PayrollSystemTest
PayrollSystemTest.java:100: error: cannot find symbol
		HourlyEmployee hourlyEmployee = new HourlyEmployee(firstName, lastName, ssn, birth, month, hourlyWages,
		                                                                             ^
  symbol:   variable birth
  location: class PayrollSystemTest
PayrollSystemTest.java:119: error: cannot find symbol
		CommissionEmployee commissionEmployee = new CommissionEmployee(firstName, lastName, ssn, birth, month, 
		                                                                                         ^
  symbol:   variable birth
  location: class PayrollSystemTest
PayrollSystemTest.java:141: error: cannot find symbol
				ssn, birth, month, grossSales, commissionRate, baseSalary);
				     ^
  symbol:   variable birth
  location: class PayrollSystemTest
5 errors

 ----jGRASP wedge2: exit code for process is 1.
 ----jGRASP: operation complete.

thanks

[Fubarable]

ok I've corrected a view things. Here's the new code.

Most of the error messages are self explanatory.

 ----jGRASP exec: javac -g PayrollSystemTest.java

PayrollSystemTest.java:56: error: cannot find symbol
			if (currentEmployee.getBirthDate().getMonth() == BONUS_MONTH) {
			                                  ^
  symbol:   method getMonth()
  location: class String

you're calling getBirthDate() on the currentEmployee which returns a String, and then calling getMonth() on this, and Strings don't have this method. But more importantly, please look closely at that line of code because just a glance should tell you that it doesn't make sense. Don't you instead want to simply call the getMonth() method on the currentEmployee?

PayrollSystemTest.java:82: error: cannot find symbol
		SalariedEmployee salariedEmployee = new SalariedEmployee(firstName, lastName, ssn, birth, month, salary);
		                                                                                   ^
  symbol:   variable birth
  location: class PayrollSystemTest

Here the compiler is telling you that you're trying to use a variable, birth, that doesn't exist in this scope. You can only use variables that exist inside of the scope where you're using it.

PayrollSystemTest.java:100: error: cannot find symbol
		HourlyEmployee hourlyEmployee = new HourlyEmployee(firstName, lastName, ssn, birth, month, hourlyWages,
		                                                                             ^
  symbol:   variable birth
  location: class PayrollSystemTest
PayrollSystemTest.java:119: error: cannot find symbol
		CommissionEmployee commissionEmployee = new CommissionEmployee(firstName, lastName, ssn, birth, month, 
		                                                                                         ^
  symbol:   variable birth
  location: class PayrollSystemTest
PayrollSystemTest.java:141: error: cannot find symbol
				ssn, birth, month, grossSales, commissionRate, baseSalary);
				     ^
  symbol:   variable birth
  location: class PayrollSystemTest

Same for all the above errors. Again look in the method that holds the erroneous code and look to see where you declare the birth variable before trying to use it here (you don't), and fix this.

The moral to all of this is to not look in fear and confusion at the error messages, but rather to try to understand what they are telling you, for usually the cause of the problem and then its solution can pretty easily be obtained from these messages.