bash
import java.util.ArrayList;
import java.util.Comparator;
import java.util.List;
import java.util.Scanner;
// 员工类
class Employee {
private String id;
private String name;
private String department;
private double salary;
public Employee(String id, String name, String department, double salary) {
this.id = id;
this.name = name;
this.department = department;
this.salary = salary;
}
public String getId() {
return id;
}
public String getName() {
return name;
}
public String getDepartment() {
return department;
}
public double getSalary() {
return salary;
}
public void setName(String name) {
this.name = name;
}
public void setDepartment(String department) {
this.department = department;
}
public void setSalary(double salary) {
this.salary = salary;
}
@Override
public String toString() {
return "👤 员工信息 {" +
"工号='" + id + '\'' +
", 姓名='" + name + '\'' +
", 部门='" + department + '\'' +
", 工资=¥" + salary +
'}';
}
}
// 工资管理系统类
public class SalaryManagementSystem {
private static List<Employee> employees = new ArrayList<>();
private static Scanner scanner = new Scanner(System.in);
public static void main(String[] args) {
login(); // 登录
boolean exit = false;
while (!exit) {
displayMenu();
int choice = scanner.nextInt();
scanner.nextLine(); // Consume newline left-over
switch (choice) {
case 1:
addEmployee();
break;
case 2:
deleteEmployee();
break;
case 3:
updateEmployee();
break;
case 4:
queryEmployee();
break;
case 5:
showStatistics();
break;
case 6:
exit = true;
break;
case 7:
sortEmployeesBySalary();
break;
// 显示所有员工信息
case 8:
displayAllEmployees();
break;
default:
System.out.println("❌ 请输入有效的选项！");
break;
}
}
System.out.println("👋 感谢使用工资管理系统！");
}
private static void sortEmployeesBySalary() {
if (employees.isEmpty()) {
System.out.println("⚠️ 当前没有员工信息！");
return;
}
employees.sort(Comparator.comparingDouble(Employee::getSalary));
System.out.println("✨ 员工信息按工资升序排序：");
for (Employee emp : employees) {
System.out.println(emp);
}
}
// 显示所有员工信息
private static void displayAllEmployees() {
if (employees.isEmpty()) {
System.out.println("⚠️ 当前没有员工信息！");
return;
}
System.out.println("✨ 所有员工信息：");
for (Employee emp : employees) {
System.out.println(emp);
}
}
// 登录功能，这里简单模拟，可以根据实际情况扩展
private static void login() {
System.out.println("=== 欢迎使用工资管理系统 ===");
while (true) {
System.out.print("🔑 请输入用户名：");
String username = scanner.nextLine();
System.out.print("🔑 请输入密码：");
String password = scanner.nextLine();
// 简单模拟用户名和密码
if (username.equals("admin") && password.equals("admin")) {
System.out.println("✅ 登录成功！");
break;
} else {
System.out.println("❌ 用户名或密码错误，请重试！");
}
}
}
// 显示菜单
private static void displayMenu() {
System.out.println("\n请选择操作：");
System.out.println("1. ➕ 增加员工信息");
System.out.println("2. ➖ 删除员工信息");
System.out.println("3. ✏️ 修改员工信息");
System.out.println("4. 🔍 查询员工信息");
System.out.println("5. 📊 查看统计信息");
System.out.println("6. 退出系统");
System.out.println("7. 🔄 按工资排序员工信息");
System.out.println("8. 📜 显示所有员工信息");
System.out.print("请输入数字选择操作：");
}
// 添加员工信息
private static void addEmployee() {
System.out.print("请输入员工工号：");
String id = scanner.nextLine();
System.out.print("请输入员工姓名：");
String name = scanner.nextLine();
System.out.print("请输入员工部门：");
String department = scanner.nextLine();
System.out.print("请输入员工工资：");
double salary = scanner.nextDouble();
scanner.nextLine(); // Consume newline left-over
Employee newEmployee = new Employee(id, name, department, salary);
employees.add(newEmployee);
System.out.println("✅ 员工信息添加成功！");
}
// 删除员工信息
private static void deleteEmployee() {
System.out.print("请输入要删除的员工工号：");
String id = scanner.nextLine();
boolean found = false;
for (Employee emp : employees) {
if (emp.getId().equals(id)) {
employees.remove(emp);
System.out.println("✅ 员工信息删除成功！");
found = true;
break;
}
}
if (!found) {
System.out.println("❌ 未找到该员工！");
}
}
// 修改员工信息
private static void updateEmployee() {
System.out.print("请输入要修改的员工工号：");
String id = scanner.nextLine();
boolean found = false;
for (Employee emp : employees) {
if (emp.getId().equals(id)) {
System.out.print("请输入新的员工姓名：");
String newName = scanner.nextLine();
System.out.print("请输入新的员工部门：");
String newDept = scanner.nextLine();
System.out.print("请输入新的员工工资：");
double newSalary = scanner.nextDouble();
scanner.nextLine(); // Consume newline left-over
emp.setName(newName);
emp.setDepartment(newDept);
emp.setSalary(newSalary);
System.out.println("✅ 员工信息修改成功！");
found = true;
break;
}
}
if (!found) {
System.out.println("❌ 未找到该员工！");
}
}
// 查询员工信息
private static void queryEmployee() {
System.out.print("请输入要查询的员工工号：");
String id = scanner.nextLine();
boolean found = false;
for (Employee emp : employees) {
if (emp.getId().equals(id)) {
System.out.println(emp);
found = true;
break;
}
}
if (!found) {
System.out.println("❌ 未找到该员工！");
}
}
// 查看统计信息
private static void showStatistics() {
if (employees.isEmpty()) {
System.out.println("⚠️ 当前没有员工信息！");
return;
}
double totalSalary = 0;
double maxSalary = Double.MIN_VALUE;
double minSalary = Double.MAX_VALUE;
for (Employee emp : employees) {
double salary = emp.getSalary();
totalSalary += salary;
if (salary > maxSalary) {
maxSalary = salary;
}
if (salary < minSalary) {
minSalary = salary;
}
}
double averageSalary = totalSalary / employees.size();
System.out.println("📊 统计信息：");
System.out.println("总员工人数：" + employees.size());
System.out.println("平均工资：¥" + averageSalary);
System.out.println("最高工资：¥" + maxSalary);
System.out.println("最低工资：¥" + minSalary);
}
}