【0718作业】组装一台电脑

 【接口】

 1 package com.computer;
 2 /**
 3  *-        CPU接口
 4  *-        需要厂商返回 品牌和主频
 5  *2019-07-19
 6  * @author L
 7  *
 8  */
 9 public interface CPU {
10     public String getBrand();//品牌
11     public String getMain();//主频
12 }

 1 package com.computer;
 2 /**
 3  * -    CPU厂商
 4  * 2019-07-19
 5  * @author L
 6  *
 7  */
 8 public class CPUVendor implements CPU{
 9 
10     @Override
11     public String getBrand() {
12         // TODO Auto-generated method stub
13         return "Inter";
14     }
15 
16     @Override
17     public String getMain() {
18         // TODO Auto-generated method stub
19         return "2.00 GHz";
20     }
21 
22 
23     
24 }

 1 package com.computer;
 2 /**
 3  * -    EMS内存接口
 4  * -    需要厂商返回 类型和容量
 5  * 2019-07-19
 6  * @author L
 7  *
 8  */
 9 public interface EMS {
10     public String getType();//内存类型
11     public  String getCapacity();//内存容量
12     
13 }

 1 package com.computer;
 2 /**
 3  * -    内存厂商
 4  * 2019-07-19
 5  * @author L
 6  *
 7  */
 8 public class EMSVendor implements EMS{
 9 
10 
11     @Override
12     public String getType() {
13         // TODO Auto-generated method stub
14         return "DDR SDRAM";
15     }
16     
17     @Override
18     public String getCapacity() {
19         // TODO Auto-generated method stub
20         return "4GB";
21     }
22     
23 }

 1 package com.computer;
 2 /**
 3  * -    硬盘接口HardDisk
 4  * -    需要厂商返回 容量
 5  * @author L
 6  *
 7  */
 8 public interface HardDisk {
 9     public String getCapacity();//硬盘容量
10 }

 1 package com.computer;
 2 /**
 3  * -    硬盘厂商
 4  * 2019-07-19
 5  * @author L
 6  *
 7  */
 8 public class HardDiskVendor implements HardDisk{
 9 
10     @Override
11     public String getCapacity() {
12         // TODO Auto-generated method stub
13         return "3000GB";
14     }
15 
16 }

【电脑】

 1 package com.computer;
 2 /**
 3  *-     组装一台计算机
 4  *-        需要三个接口，CPU接口，内存接口EMS，硬盘接口HardDisk    
 5  *2019-07-19
 6  * @author L
 7  *
 8  */
 9 public class Computer {
10     private CPU cpu;
11     private EMS ems;
12     private HardDisk harddisk;
13     
14     public CPU getCpu() {
15         return cpu;
16     }
17     public void setCpu(CPU cpu) {
18         this.cpu = cpu;
19     }
20     public EMS getEms() {
21         return ems;
22     }
23     public void setEms(EMS ems) {
24         this.ems = ems;
25     }
26     public HardDisk getHardisk() {
27         return harddisk;
28     }
29     public void setHardisk(HardDisk harddisk) {
30         this.harddisk = harddisk;
31     }
32     
33     
34     //计算机信息输出
35     public void print() {
36         System.out.println("计算机的信息如下：");
37         System.out.println("CPU的品牌是："+cpu.getBrand()+",主频是："+cpu.getMain());
38         System.out.println("硬盘的容量是："+harddisk.getCapacity());
39         System.out.println("内存的容量是："+ems.getCapacity()+"，类型是："+ems.getType());
40     }
41     
42 }

【测试】

 1 package com.computer;
 2 /**
 3  * -    测试类
 4  * -    输出计算机的信息
 5  * 2019-07-19
 6  * @author L
 7  *
 8  */
 9 public class Test {
10     public static void main(String[] args) {
11         Computer computer=new Computer();
12         CPU cpu =new CPUVendor();
13         EMS ems =new EMSVendor();
14         HardDisk harddisk=new HardDiskVendor();
15         
16         computer.setCpu(cpu);
17         computer.setEms(ems);
18         computer.setHardisk(harddisk);
19         
20         computer.print();
21         
22         
23         
24     }
25 }

【结果】