emps - początek

.gitignore

@@ -35,4 +35,9 @@ build/
 .vscode/
 
 ### Mac OS ###
-.DS_Store
\ No newline at end of file
+.DS_Store
+/plik1a.txt
+/liczby1.txt
+/liczby1a.txt
+/plik1.txt
+/plik1a.txt

src/main/java/emps/Employee.java

+package emps;
+
+import java.time.LocalDate;
+import java.util.Objects;
+
+public class Employee {
+    private int employeeId;
+    private String firstName;
+    private String lastName;
+    private String jobTitle;
+    private int salary;
+    private LocalDate hireDate;
+    private String departmentName;
+    private String address;
+    private String postalCode;
+    private String city;
+    private String country;
+
+    public Employee(int employeeId, String firstName, String lastName, String jobTitle, int salary, LocalDate hireDate, String departmentName, String address, String postalCode, String city, String country) {
+        this.employeeId = employeeId;
+        this.firstName = firstName;
+        this.lastName = lastName;
+        this.jobTitle = jobTitle;
+        this.salary = salary;
+        this.hireDate = hireDate;
+        this.departmentName = departmentName;
+        this.address = address;
+        this.postalCode = postalCode;
+        this.city = city;
+        this.country = country;
+    }
+
+    public int getEmployeeId() {
+        return employeeId;
+    }
+
+    public void setEmployeeId(int employeeId) {
+        this.employeeId = employeeId;
+    }
+
+    public String getFirstName() {
+        return firstName;
+    }
+
+    public void setFirstName(String firstName) {
+        this.firstName = firstName;
+    }
+
+    public String getLastName() {
+        return lastName;
+    }
+
+    public void setLastName(String lastName) {
+        this.lastName = lastName;
+    }
+
+    public String getJobTitle() {
+        return jobTitle;
+    }
+
+    public void setJobTitle(String jobTitle) {
+        this.jobTitle = jobTitle;
+    }
+
+    public int getSalary() {
+        return salary;
+    }
+
+    public void setSalary(int salary) {
+        this.salary = salary;
+    }
+
+    public LocalDate getHireDate() {
+        return hireDate;
+    }
+
+    public void setHireDate(LocalDate hireDate) {
+        this.hireDate = hireDate;
+    }
+
+    public String getDepartmentName() {
+        return departmentName;
+    }
+
+    public void setDepartmentName(String departmentName) {
+        this.departmentName = departmentName;
+    }
+
+    public String getAddress() {
+        return address;
+    }
+
+    public void setAddress(String address) {
+        this.address = address;
+    }
+
+    public String getPostalCode() {
+        return postalCode;
+    }
+
+    public void setPostalCode(String postalCode) {
+        this.postalCode = postalCode;
+    }
+
+    public String getCity() {
+        return city;
+    }
+
+    public void setCity(String city) {
+        this.city = city;
+    }
+
+    public String getCountry() {
+        return country;
+    }
+
+    public void setCountry(String country) {
+        this.country = country;
+    }
+
+    @Override
+    public String toString() {
+        return "Employees{" +
+                "employeeId=" + employeeId +
+                ", firstName='" + firstName + '\'' +
+                ", lastName='" + lastName + '\'' +
+                ", jobTitle='" + jobTitle + '\'' +
+                ", salary=" + salary +
+                ", hireDate=" + hireDate +
+                ", departmentName='" + departmentName + '\'' +
+                ", address='" + address + '\'' +
+                ", postalCode='" + postalCode + '\'' +
+                ", city='" + city + '\'' +
+                ", country='" + country + '\'' +
+                '}';
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (o == null || getClass() != o.getClass()) return false;
+        Employee employees = (Employee) o;
+        return employeeId == employees.employeeId && salary == employees.salary && Objects.equals(firstName, employees.firstName) && Objects.equals(lastName, employees.lastName) && Objects.equals(jobTitle, employees.jobTitle) && Objects.equals(hireDate, employees.hireDate) && Objects.equals(departmentName, employees.departmentName) && Objects.equals(address, employees.address) && Objects.equals(postalCode, employees.postalCode) && Objects.equals(city, employees.city) && Objects.equals(country, employees.country);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(employeeId, firstName, lastName, jobTitle, salary, hireDate, departmentName, address, postalCode, city, country);
+    }
+}

src/main/java/emps/ObslugaCSV.java

+package emps;
+
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.PrintWriter;
+import java.time.LocalDate;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Scanner;
+
+public class ObslugaCSV {
+    public static List<Employee> wczytaj() {
+        // używa domyślnego pliku
+        return wczytaj("emps.csv");
+    }
+
+    public static List<Employee> wczytaj(String sciezka) {
+        return wczytaj(new File(sciezka));
+    }
+
+    public static List<Employee> wczytaj(File plik) {
+        List<Employee> emps = new ArrayList<>();
+        try(Scanner scanner = new Scanner(plik)) {
+            scanner.nextLine(); // pomijamy pierwszą linię
+            while(scanner.hasNextLine()) {
+                String linia = scanner.nextLine();
+                String[] t = linia.split(";", -1);
+                Employee emp = new Employee(Integer.parseInt(t[0]), t[1], t[2], t[3],
+                        Integer.parseInt(t[4]), LocalDate.parse(t[5]),
+                        t[6], t[7], t[8], t[9], t[10]);
+                emps.add(emp);
+            }
+        } catch (FileNotFoundException e) {
+            e.printStackTrace();
+            // w razie błędu (brak pliku) wypiszemy czerwone teksty na ekran, ale nie przerwiemy programu, tylko zwrócimy pustą listę
+        }
+        return emps;
+    }
+
+    public static void zapisz(List<Employee> lista, File plik) {
+        try(PrintWriter out = new PrintWriter(plik)) {
+            out.println(
+                    "employee_id;first_name;last_name;job_title;salary;hire_date;department_name;address;postal_code;city;country");
+            for(Employee emp : lista) {
+                out.printf("%d;%s;%s;%s;%d;%s;%s;%s;%s;%s;%s\n", emp.getEmployeeId(), emp.getFirstName(),
+                        emp.getLastName(), emp.getJobTitle(), emp.getSalary(), emp.getHireDate(),
+                        emp.getDepartmentName(), emp.getAddress(), emp.getPostalCode(), emp.getCity(),
+                        emp.getCountry());
+            }
+        } catch (FileNotFoundException e) {
+            e.printStackTrace();
+        }
+    }
+
+    public static void zapisz(List<Employee> lista, String sciezka) {
+        zapisz(lista, new File(sciezka));
+    }
+
+    public static void zapisz(List<Employee> lista) {
+        zapisz(lista, "emps.csv");
+    }
+}

src/main/java/emps/P0_ProbaOdczytu.java

+package emps;
+
+import java.util.List;
+
+public class P0_ProbaOdczytu {
+
+    public static void main(String[] args) {
+        List<Employee> emps = ObslugaCSV.wczytaj();
+        System.out.println("Wczytano " + emps.size() + " rekordów");
+        for(Employee emp : emps) {
+            System.out.println(emp);
+        }
+    }
+}