Java 抽象类 练习

 1 package com.bytezreo.template;
 2
 3 import java.util.Calendar;
 4 import java.util.Scanner;
 5
 6 /**
 7  *
 8  * @Description    抽象类 练习
 9  * @author Bytezero·zhenglei!        Email:420498246@qq.com
10  * @version
11  * @date 下午2:50:49
12  * @
13  *
14  */
15 public class PayrollSystem {
16
17     public static void main(String[] args) {
18
19         //方式一：
20 //        Scanner scanner = new Scanner(System.in);
21 //        System.out.println("请输入当月的月份：");
22 //        int month = scanner.nextInt();
23
24         //方式二
25         Calendar calendar = Calendar.getInstance();
26         int month =calendar.get(Calendar.MONTH); //获取当前的月份
27         System.out.println(month+1); //一月份 0
28
29
30
31
32         Employee[] emps = new Employee[2];
33
34         emps[0] = new SalariedEmployee("Tom", 1002, new MyDate(2000, 3, 15),10000);
35         emps[1] = new HourlyEmployee("jery", 2001, new MyDate(2001,10, 17),60,240);
36
37         for(int i =0; i <emps.length;i++) {
38             System.out.println(emps[i]);
39
40              double salary =emps[i].earnings();
41              System.out.println("月工资为：" + salary);
42
43              if((month+1) == emps[i].getBirthady().getMonth()) {
44                  System.out.println("生日快乐！奖励100元");
45              }
46
47
48         }
49
50     }
51 }

 1 package com.bytezreo.template;
 2
 3 /**
 4  *
 5  * @Description
 6  * @author Bytezero·zhenglei!        Email:420498246@qq.com
 7  * @version
 8  * @date 下午2:23:00
 9  * @
10  *
11  */
12 public abstract class Employee {
13         private String name;
14         private int number;
15         private MyDate birthady;
16
17
18         public Employee(String name, int number, MyDate birthady) {
19             super();
20             this.name = name;
21             this.number = number;
22             this.birthady = birthady;
23         }
24
25         public String getName() {
26             return name;
27         }
28
29         public void setName(String name) {
30             this.name = name;
31         }
32
33         public int getNumber() {
34             return number;
35         }
36
37         public void setNumber(int number) {
38             this.number = number;
39         }
40
41         public MyDate getBirthady() {
42             return birthady;
43         }
44
45         public void setBirthady(MyDate birthady) {
46             this.birthady = birthady;
47         }
48
49         public abstract double earnings();
50
51         @Override
52         public String toString() {
53             return "name=" + name + ", number=" + number + ", birthady=" + birthady.toDateString();
54         }
55
56
57
58 }

 1 package com.bytezreo.template;
 2
 3
 4 public class SalariedEmployee extends Employee{
 5
 6     private double monthlySalary;  //月工资
 7
 8     public SalariedEmployee(String name, int number, MyDate birthady) {
 9         super(name, number, birthady);
10
11     }
12
13     public SalariedEmployee(String name, int number, MyDate birthady,double monthlySalary) {
14         super(name, number, birthady);
15         this.monthlySalary = monthlySalary;
16     }
17
18
19     public double getMonthlySalary() {
20         return monthlySalary;
21     }
22
23
24     public void setMonthlySalary(double monthlySalary) {
25         this.monthlySalary = monthlySalary;
26     }
27
28
29     @Override
30     public double earnings() {
31
32         return monthlySalary;
33     }
34
35     public String toString() {
36         return "SalariedEmployee[ " +super.toString()+"]";
37     }
38
39
40
41
42
43 }

 1 package com.bytezreo.template;
 2
 3
 4 public class HourlyEmployee extends Employee {
 5
 6     private int wage;  //每小时的工资
 7     private int hour;  //月工作的小时数
 8
 9     public HourlyEmployee(String name, int number, MyDate birthady) {
10         super(name, number, birthady);
11
12     }
13
14     public HourlyEmployee(String name, int number, MyDate birthady,int wage,int hour) {
15         super(name, number, birthady);
16         this.wage = wage;
17         this.hour = hour;
18     }
19
20
21     public int getWage() {
22         return wage;
23     }
24
25     public void setWage(int wage) {
26         this.wage = wage;
27     }
28
29     public int getHour() {
30         return hour;
31     }
32
33     public void setHour(int hour) {
34         this.hour = hour;
35     }
36
37     @Override
38     public double earnings() {
39
40         return wage * hour;
41     }
42
43
44     public String toString() {
45         return "HourlyEmployee[ " +super.toString()+"]";
46     }
47
48 }