Q1_20251108152245.webp

getSalary(): double
.getDepartment(): String
.setName(n: String): void
.setSalary(s: double): void
.setDepartment(d: String): void
compareTo(other: Employee): int
.toString(): String
Base on given class diagram, create all interface and class
1. Class Employee
Declare the fields of the class.

Constructor: initialize the fields with values.

Getter methods for the fields.
Setter methods for the fields.
int compareTo(Employee other): defines the natural order by name (case-insensitive).
String toString(): return a string in the specified format id-name-salary-department
2. Interface Employee Management
void add(Employee e); - add a new employee.
void update(Employee e);-replace an existing employee by ID.
• List<Employee> listAll(); return an unmodifiable or copied list of employees.
• List<Employee> sortByName(); return an unmodifiable or copied list of employees ordered
by name.
3. Class InMemoryEmployee Management
• Declare the fields of the class.
void add(Employee e)
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