Employee class

employee.java

public class Employee {
    private String name;
    private String email;

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;
        Employee employee = (Employee) o;
        return Objects.equals(name, employee.name) && Objects.equals(email, employee.email);
    }

    @Override
    public int hashCode() {
        return Objects.hash(name, email);
    }
}