J260713/授课代码/c260803/src/exericse/exericse02/Employee.java

package exericse.exericse02;

import java.util.Objects;

/**
 * @author WanJl
 * @version 1.0
 * @title Employee
 * @description
 * @create 2026/8/3
 */
public class Employee implements Comparable<Employee> {
    private String id;      // 工号
    private String name;    // 姓名
    private double salary;  // 薪资
    private String dept;    // 部门

    public Employee(String id, String name, double salary, String dept) {
        this.id = id;
        this.name = name;
        this.salary = salary;
        this.dept = dept;
    }

    // TODO: 补全 getter / setter / toString 方法

    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 double getSalary() {
        return salary;
    }

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

    public String getDept() {
        return dept;
    }

    public void setDept(String dept) {
        this.dept = dept;
    }

    // TODO: 重写 compareTo —— 按薪资降序，薪资相同再按工号
    @Override
    public int compareTo(Employee o) {
        // 提示：Double.compare(o.getSalary(), this.salary)  // 降序
        //       若返回 0，再比较工号：this.id.compareTo(o.getId())
        int result= Double.compare(o.getSalary(), this.salary);
        return result==0?this.id.compareTo(o.getId()):result;
    }

    @Override
    public boolean equals(Object o) {
        if (o == null || getClass() != o.getClass()) return false;
        Employee employee = (Employee) o;
        return Double.compare(salary, employee.salary) == 0 && Objects.equals(id, employee.id) && Objects.equals(name, employee.name) && Objects.equals(dept, employee.dept);
    }

    @Override
    public int hashCode() {
        return Objects.hash(id, name, salary, dept);
    }

    @Override
    public String toString() {
        return "Employee{" +
                "id='" + id + '\'' +
                ", name='" + name + '\'' +
                ", salary=" + salary +
                ", dept='" + dept + '\'' +
                '}';
    }
}