java/w3/Employee.java

public class Employee {

    // 静态变量：公司名称
    private static String companyName = "ABC科技有限公司";

    // 最低工资标准
    private static final double MIN_SALARY = 2000.0;

    // 属性：工号、姓名、部门、工资
    private String id;
    private String name;
    private String department;
    private double salary;

    // 全参构造方法（同时为 companyName 赋值）
    public Employee(String id, String name, String department, double salary) {
        this.id = id;
        this.name = name;
        this.department = department;
        // 使用 setSalary 确保工资合法
        setSalary(salary);
    }

    // ==================== Getter & Setter ====================

    public static String getCompanyName() {
        return companyName;
    }

    public static void setCompanyName(String companyName) {
        Employee.companyName = companyName;
    }

    public String getId() {
        return id;
    }

    public void setId(String id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getDepartment() {
        return department;
    }

    public void setDepartment(String department) {
        this.department = department;
    }

    public double getSalary() {
        return salary;
    }

    /**
     * 设置工资，工资必须大于等于最低工资标准（2000）
     */
    public void setSalary(double salary) {
        if (salary >= MIN_SALARY) {
            this.salary = salary;
        } else {
            System.out.println("警告：工资不能低于最低工资标准 " + MIN_SALARY
                    + " 元，已自动设置为最低工资标准。");
            this.salary = MIN_SALARY;
        }
    }

    /**
     * 按百分比涨工资
     * percent 为 5 表示增加 5%
     * 增加后仍不低于最低工资
     */
    public void raiseSalary(double percent) {
        double newSalary = this.salary * (1 + percent / 100.0);
        if (newSalary < MIN_SALARY) {
            newSalary = MIN_SALARY;
        }
        this.salary = newSalary;
        System.out.printf("涨薪 %.1f%%，%s 的新工资为：%.2f 元%n", percent, this.name, this.salary);
    }

    /**
     * 输出员工信息
     */
    public void printInfo() {
        System.out.println("==============================");
        System.out.println("公司：" + companyName);
        System.out.println("工号：" + id);
        System.out.println("姓名：" + name);
        System.out.println("部门：" + department);
        System.out.printf("工资：%.2f 元%n", salary);
        System.out.println("==============================");
    }
}