import java.io.*;
import java.util.*;
class Employee implements Serializable {
private static final long serialVersionUID = 1L;
private String id;
private String name;
private String sex;
private String education;
private int age;
private double salary;
private String phone;
public Employee(String id, String name, String sex, String education, int age, double salary, String phone) {
this.id = id;
this.name = name;
this.sex = sex;
this.education = education;
this.age = age;
this.salary = salary;
this.phone = phone;
}
public String getId() {
return id;
}
public String getName() {
return name;
}
public String getSex() {
return sex;
}
public String getEducation() {
return education;
}
public int getAge() {
return age;
}
public double getSalary() {
return salary;
}
public String getPhone() {
return phone;
}
public void setId(String id) {
this.id = id;
}
public void setName(String name) {
this.name = name;
}
public void setSex(String sex) {
this.sex = sex;
}
public void setEducation(String education) {
this.education = education;
}
public void setAge(int age) {
this.age = age;
}
public void setSalary(double salary) {
this.salary = salary;
}
public void setPhone(String phone) {
this.phone = phone;
}
@Override
public String toString() {
return "工号: " + id + "\n" +
"姓名: " + name + "\n" +
"性别(m或f): " + sex + "\n" +
"学历: " + education + "\n" +
"年龄: " + age + "\n" +
"工资: " + String.format("%.1f", salary) + "\n" +
"电话: " + phone + "\n";
}
}
class EmployeeManager {
private List<Employee> employees = new ArrayList<>();
public void addWorker(Employee employee) {
employees.add(employee);
}
public void deleteWorker(String id) {
for (Employee employee : employees) {
if (employee.getId().equals(id)) {
employees.remove(employee);
break;
}
}
}
public void modification(Employee employee) {
for (Employee e : employees) {
if (e.getId().equals(employee.getId())) {
e.setName(employee.getName());
e.setSex(employee.getSex());
e.setEducation(employee.getEducation());
e.setAge(employee.getAge());
e.setSalary(employee.getSalary());
e.setPhone(employee.getPhone());
break;
}
}
}
public List<Employee> getEmployees() {
return employees;
}
public void sortByIdAsc() {
Collections.sort(employees, new Comparator<Employee>() {
@Override
public int compare(Employee o1, Employee o2) {
return o1.getId().compareTo(o2.getId());
}
});
}
public void sortByIdDesc() {
Collections.sort(employees, new Comparator<Employee>() {
@Override
public int compare(Employee o1, Employee o2) {
return o2.getId().compareTo(o1.getId());
}
});
}
public void sortBySalaryAsc() {
Collections.sort(employees, new Comparator<Employee>() {
@Override
public int compare(Employee o1, Employee o2) {
return Double.compare(o1.getSalary(), o2.getSalary());
}
});
}
public void sortBySalaryDesc() {
Collections.sort(employees, new Comparator<Employee>() {
@Override
public int compare(Employee o1, Employee o2) {
return Double.compare(o2.getSalary(), o1.getSalary());
}
});
}
public Employee findById(String id) {
for (Employee employee : employees) {
if (employee.getId().equals(id)) {
return employee;
}
}
return null;
}
public List<Employee> findByName(String name) {
List<Employee> result = new ArrayList<>();
for (Employee employee : employees) {
if (employee.getName().equals(name)) {
result.add(employee);
}
}
return result;
}
public void writeFile() throws IOException {
try (ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream("employees.dat"))) {
oos.writeObject(employees);
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
public void loadFile() throws IOException, ClassNotFoundException {
try {
ObjectInputStream ois = new ObjectInputStream(new FileInputStream("employees.dat"));
employees = (List<Employee>) ois.readObject();
ois.close();
} catch (FileNotFoundException e) {
} catch (IOException e) {
e.printStackTrace();
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
}
}
public class Main {
private static Scanner scanner = new Scanner(System.in);
private static EmployeeManager manager = new EmployeeManager();
public static void main(String[] args) throws IOException, ClassNotFoundException {
manager.loadFile();
while (true) {
System.out.println("请选择操作：");
System.out.println("1. 增加人员");
System.out.println("2. 修改人员");
System.out.println("3. 删除人员");
System.out.println("4. 职工信息排序");
System.out.println("5. 职工信息查找");
System.out.println("6. 所有职工信息显示");
System.out.println("7. 职工信息保存");
System.out.println("0. 退出程序");
int choice = scanner.nextInt();
scanner.nextLine();
switch (choice) {
case 1:
addWorker();
break;
case 2:
modification();
break;
case 3:
deleteWorker();
break;
case 4:
sortWorker();
break;
case 5:
findWorker();
break;
case 6:
showWorker();
break;
case 7:
saveEmployees();
break;
case 0:
System.exit(0);
break;
default:
System.out.println("无效的选择，请重新输入。");
break;
}
}
}
private static void addWorker() {
System.out.println("请输入职工信息：");
System.out.print("工号: ");
String id = scanner.nextLine();
System.out.print("姓名: ");
String name = scanner.nextLine();
System.out.print("性别(m或f): ");
String sex = scanner.nextLine();
System.out.print("学历: ");
String education = scanner.nextLine();
System.out.print("年龄: ");
int age = scanner.nextInt();
scanner.nextLine();
System.out.print("工资: ");
double salary = scanner.nextDouble();
scanner.nextLine();
System.out.print("电话: ");
String phone = scanner.nextLine();
Employee employee = new Employee(id, name, sex, education, age, salary, phone);
manager.addWorker(employee);
System.out.println("职工信息已添加。");
}
private static void modification() {
System.out.print("请输入要修改的职工工号: ");
String id = scanner.nextLine();
Employee employee = manager.findById(id);
if (employee == null) {
System.out.println("未找到该职工。");
return;
}
System.out.println("请输入新的职工信息：");
System.out.print("姓名: ");
String name = scanner.nextLine();
System.out.print("性别(m或f): ");
String sex = scanner.nextLine();
System.out.print("学历: ");
String education = scanner.nextLine();
System.out.print("年龄: ");
int age = scanner.nextInt();
scanner.nextLine();
System.out.print("工资: ");
double salary = scanner.nextDouble();
scanner.nextLine();
System.out.print("电话: ");
String phone = scanner.nextLine();
employee.setName(name);
employee.setSex(sex);
employee.setEducation(education);
employee.setAge(age);
employee.setSalary(salary);
employee.setPhone(phone);
manager.modification(employee);
System.out.println("职工信息已更新。");
}
private static void deleteWorker() {
System.out.print("请输入要删除的职工工号: ");
String id = scanner.nextLine();
manager.deleteWorker(id);
System.out.println("职工信息已删除。");
}
private static void sortWorker() {
System.out.println("请选择排序方式：");
System.out.println("1. 按工号升序排序");
System.out.println("2. 按工号降序排序");
System.out.println("3. 按工资升序排序");
System.out.println("4. 按工资降序排序");
int choice = scanner.nextInt();
scanner.nextLine();
switch (choice) {
case 1:
manager.sortByIdAsc();
System.out.println("职工信息已按工号升序排序。");
break;
case 2:
manager.sortByIdDesc();
System.out.println("职工信息已按工号降序排序。");
break;
case 3:
manager.sortBySalaryAsc();
System.out.println("职工信息已按工资升序排序。");
break;
case 4:
manager.sortBySalaryDesc();
System.out.println("职工信息已按工资降序排序。");
break;
default:
System.out.println("无效的选择，请重新输入。");
break;
}
}
private static void findWorker() {
System.out.println("请选择查找方式：");
System.out.println("1. 按工号查找");
System.out.println("2. 按姓名查找");
int choice = scanner.nextInt();
scanner.nextLine();
switch (choice) {
case 1:
System.out.print("请输入要查找的职工工号: ");
String id = scanner.nextLine();
Employee employee = manager.findById(id);
if (employee == null) {
System.out.println("未找到该职工。");
} else {
System.out.println(employee);
}
break;
case 2:
System.out.print("请输入要查找的职工姓名: ");
String name = scanner.nextLine();
List<Employee> employees = manager.findByName(name);
if (employees.isEmpty()) {
System.out.println("未找到该职工。");
} else {
for (Employee e : employees) {
System.out.println(e);
}
}
break;
default:
System.out.println("无效的选择，请重新输入。");
break;
}
}
private static void showWorker() {
List<Employee> employees = manager.getEmployees();
if (employees.isEmpty()) {
System.out.println("没有职工信息。");
} else {
for (Employee employee : employees) {
System.out.println(employee);
}
}
}
private static void saveEmployees() {
try {
manager.writeFile();
System.out.println("职工信息已保存");
} catch (IOException e) {
System.out.println("保存职工信息失败: " + e.getMessage());
}
}
}
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