java/W3/Employee.java

public class Employee {
    // 私有实例变量
    private String id;
    private String name;
    private String department;
    private double salary;

    // 静态变量（所有员工共享）
    private static String companyName;

    // 最低工资常量
    public static final double MIN_SALARY = 2000.0;

    // 构造方法
    public Employee(String id, String name, String department, double salary) {
        this.id = id;
        this.name = name;
        this.department = department;

        // 工资校验
        if (salary >= MIN_SALARY) {
            this.salary = salary;
        } else {
            this.salary = MIN_SALARY;
        }

        // 给公司名称赋值
        companyName = "我的公司";
    }

    // 显示员工信息
    public void showInfo() {
        System.out.println("工号：" + id);
        System.out.println("姓名：" + name);
        System.out.println("部门：" + department);
        System.out.println("工资：" + salary);
        System.out.println("公司：" + companyName);
    }

    // 程序入口
    public static void main(String[] args) {
        Employee emp = new Employee("001", "张三", "技术部", 5000);
        emp.showInfo();
    }
}