Here the error i get from the file below

F:\JAVA\Java Files\lab employee\FulltimeEmployee.java:1: cannot find symbol
symbol  : class Calender
location: package java.util
import java.util.Calender;
                ^
F:\JAVA\Java Files\lab employee\FulltimeEmployee.java:22: cannot find symbol
symbol  : class DateComponent
location: class FulltimeEmployee
		DateComponent dc = new DateComponent(date);
		^
F:\JAVA\Java Files\lab employee\FulltimeEmployee.java:22: cannot find symbol
symbol  : class DateComponent
location: class FulltimeEmployee
		DateComponent dc = new DateComponent(date);
		                       ^
F:\JAVA\Java Files\lab employee\FulltimeEmployee.java:27: cannot find symbol
symbol  : class Calender
location: class FulltimeEmployee
		Calender today = Calender.getInstance();
		^
F:\JAVA\Java Files\lab employee\FulltimeEmployee.java:27: cannot find symbol
symbol  : variable Calender
location: class FulltimeEmployee
		Calender today = Calender.getInstance();
		                 ^
F:\JAVA\Java Files\lab employee\FulltimeEmployee.java:28: cannot find symbol
symbol  : variable Calender
location: class FulltimeEmployee
		year = today.get(Calender.YEAR);
		                 ^
F:\JAVA\Java Files\lab employee\FulltimeEmployee.java:29: cannot find symbol
symbol  : variable Calender
location: class FulltimeEmployee
		month = today.get(Calender.MONTH);
		                  ^
F:\JAVA\Java Files\lab employee\FulltimeEmployee.java:30: cannot find symbol
symbol  : variable Calender
location: class FulltimeEmployee
		day = today.get(Calender.DAY_OF_MONTH);
		                ^
F:\JAVA\Java Files\lab employee\FulltimeEmployee.java:34: unexpected type
required: variable
found   : value
			vacationDays = (year - yy) = VACATION_DAYS_PER_YEAR;
			                     ^
F:\JAVA\Java Files\lab employee\FulltimeEmployee.java:38: unexpected type
required: variable
found   : value
			vacationDays = (year - yy - 1) = VACATION_DAYS_PER_YEAR;
			                          ^
F:\JAVA\Java Files\lab employee\FulltimeEmployee.java:45: return outside method
		return salary;
		^
11 errors

Tool completed with exit code 1

here the file which it is referring to to

import java.util.Calender;

public class FulltimeEmployee extends Employee
{
	protected double salary;
	private final int VACATION_DAYS_PER_YEAR = 30;

	public FulltimeEmployee(String name, String dateHired, double salary)
	{
		super(name, dateHired);
		this.salary = salary;
	}

	public int getVacationDays()
	{
		int mm, dd, yy;
		int month, day, year;
		int vacationDays;

		String date;
		date = getDateHired();
		DateComponent dc = new DateComponent(date);
		mm = dc.getMonth();
		dd = dc.getDay();
		yy = dc.getYear();

		Calender today = Calender.getInstance();
		year = today.get(Calender.YEAR);
		month = today.get(Calender.MONTH);
		day = today.get(Calender.DAY_OF_MONTH);

		if ((month < mm) || ((month == mm) && (day <=dd)))
		{
			vacationDays = (year - yy) = VACATION_DAYS_PER_YEAR;
		}
		else
		{
			vacationDays = (year - yy - 1) = VACATION_DAYS_PER_YEAR;
		}
		return vacationDays;
	}

	public double getSalary;
	{
		return salary;
	}
}

You spelt "Calender" wrong. It should be spelt "Calendar"

Also, just glancing at it, your getSalary method is wrong. Should be ...getSalary() not ;...that's just a thought, I'm new to JAVA, but you definitely spelt Calendar wrong.

after fixing the calendar spelling error and after that i am still getting the following error please help...

F:\JAVA\Java Files\lab employee\FullTimeEmployee.java:22: cannot find symbol
symbol  : class dateComponent
location: class FullTimeEmployee
		dateComponent dc = new DateComponent(date);
		^
F:\JAVA\Java Files\lab employee\FullTimeEmployee.java:22: cannot find symbol
symbol  : class DateComponent
location: class FullTimeEmployee
		dateComponent dc = new DateComponent(date);
		                       ^
F:\JAVA\Java Files\lab employee\FullTimeEmployee.java:34: unexpected type
required: variable
found   : value
			vacationDays = (year - yy) = VACATION_DAYS_PER_YEAR;
			                     ^
F:\JAVA\Java Files\lab employee\FullTimeEmployee.java:38: unexpected type
required: variable
found   : value
			vacationDays = (year - yy - 1) = VACATION_DAYS_PER_YEAR;
			                          ^
F:\JAVA\Java Files\lab employee\FullTimeEmployee.java:43: missing method body, or declare abstract
	public double getSalary();
	              ^
F:\JAVA\Java Files\lab employee\FullTimeEmployee.java:45: return outside method
		return salary;
		^
6 errors
vacationDays = (year - yy) = VACATION_DAYS_PER_YEAR;

That doesn't seem right. I don't know what you want to do so i can't really help, but since "VACATION_DAYS_PER_YEAR" is set to final and set to "30" then you are basically taking the 30 and assigning it to "(year -yy)" and then assigning "(year-yy)" to "vacactionDays" I'm bad at explaining, but can't do that, I think.

When you do more than one equal like that it usually for a 2 things with the same value like:
"int x = y = 4;"

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