20-案例分析二(Employee)

案例分析二:
    编写并测试一个代表员工的Employee类，地址信息由编号、姓名、基本薪水、薪水增长率，还包括计算薪水增长额及计算增长后的工资总额的操作方法。
    这个程序的功能已经超过了简单Java类的定义范畴，因为简单Java类里面不需要涉及到复杂的计算逻辑，但是设计的思考是应该从简单Java类开始。

class Employee{
    private long empno;
    private String ename;
    private double salary;
    private double rate;
    
    public Employee() {} //无参构造方法 必须有
    public Employee(long empno,String ename,double salary,double rate) {
        this.empno = empno;
        this.ename = ename;
        this.salary = salary;
        this.rate = rate;
    }
    public double salaryIncValue() {
        return this.salary * this.rate;
    }
    public double salaryIncResult() {
        this.salary = this.salary * (1 + this.rate);
        return this.salary;
    }
    public String getInfo() {
        return "编号：" + this.empno + "、姓名："+ this.ename + "、基本薪水：" + this.salary + "、薪水增长率：" + this.rate;
    }
    public void setEmpno(long empno) {
        this.empno = empno;
    }
    public void setEname(String ename) {
        this.ename = ename;
    }
    public void setSalary(double salary) {
        this.salary = salary;
    }
    public void setRate(double rate) {
        this.rate = rate;
    }
    
    public long getEmpno() {
        return this.empno;
    }
    public String getEname() {
        return this.ename;
    }
    public double getSalary() {
        return this.salary;
    }
    public double getRate() {
        return this.rate;
    }
}
public class JavaDemo{
    public static void main(String args[]){
        Employee emp = new Employee(7369L,"史密斯",3000.0,0.3);
        System.out.println(emp.getInfo());
        System.out.println("工资调整额度：" + emp.salaryIncValue());
        System.out.println("上调后的工资：" + emp.salaryIncResult());
        System.out.println(emp.getInfo());
        
    }   
}