使用java演示数组和方法存储和管理员工信息代码

在Java中，我们可以创建一个Employee类来表示员工信息，并通过数组和方法来管理一组员工。首先，我们定义一个Employee类，包含姓名、职位和薪水等属性：

public class Employee {
    private String name;
    private String position;
    private double salary;

    // 构造函数
    public Employee(String name, String position, double salary) {
        this.name = name;
        this.position = position;
        this.salary = salary;
    }

    // 获取和设置属性的方法
    public String getName() { return name; }
    public void setName(String name) { this.name = name; }
    
    public String getPosition() { return position; }
    public void setPosition(String position) { this.position = position; }

    public double getSalary() { return salary; }
    public void setSalary(double salary) { this.salary = salary; }
}

然后，我们可以创建一个ArrayList来存储Employee对象的数组，以及一个方法来添加、删除和显示员工信息：

import java.util.ArrayList;

public class EmployeeManager {
    private ArrayList<Employee> employees;

    public EmployeeManager() {
        employees = new ArrayList<>();
    }

    // 添加员工
    public void addEmployee(Employee emp) {
        employees.add(emp);
    }

    // 删除员工
    public void removeEmployee(String name) {
        employees.removeIf(employee -> employee.getName().equals(name));
    }

    // 显示所有员工信息
    public void displayEmployees() {
        for (Employee emp : employees) {
            System.out.println("Name: " + emp.getName() + ", Position: " + emp.getPosition() + ", Salary: " + emp.getSalary());
        }
    }
}

// 示例用法
public static void main(String[] args) {
    EmployeeManager manager = new EmployeeManager();
    manager.addEmployee(new Employee("张三", "经理", 8000));
    manager.addEmployee(new Employee("李四", "工程师", 6000));
    manager.displayEmployees();

    manager.removeEmployee("张三");
    manager.displayEmployees();
}