【0718作业】组装一台电脑

 【接口】

package com.computer;
/**
 *-        CPU接口
 *-        需要厂商返回 品牌和主频
 *2019-07-19
 * @author L
 *
 */
public interface CPU {
    public String getBrand();//品牌
    public String getMain();//主频
}

package com.computer;
/**
 * -    CPU厂商
 * 2019-07-19
 * @author L
 *
 */
public class CPUVendor implements CPU{

    @Override
    public String getBrand() {
        // TODO Auto-generated method stub
        return "Inter";
    }

    @Override
    public String getMain() {
        // TODO Auto-generated method stub
        return "2.00 GHz";
    }


    
}

package com.computer;
/**
 * -    EMS内存接口
 * -    需要厂商返回 类型和容量
 * 2019-07-19
 * @author L
 *
 */
public interface EMS {
    public String getType();//内存类型
    public  String getCapacity();//内存容量
    
}

package com.computer;
/**
 * -    内存厂商
 * 2019-07-19
 * @author L
 *
 */
public class EMSVendor implements EMS{


    @Override
    public String getType() {
        // TODO Auto-generated method stub
        return "DDR SDRAM";
    }
    
    @Override
    public String getCapacity() {
        // TODO Auto-generated method stub
        return "4GB";
    }
    
}

package com.computer;
/**
 * -    硬盘接口HardDisk
 * -    需要厂商返回 容量
 * @author L
 *
 */
public interface HardDisk {
    public String getCapacity();//硬盘容量
}

package com.computer;
/**
 * -    硬盘厂商
 * 2019-07-19
 * @author L
 *
 */
public class HardDiskVendor implements HardDisk{

    @Override
    public String getCapacity() {
        // TODO Auto-generated method stub
        return "3000GB";
    }

}

【电脑】

package com.computer;
/**
 *-     组装一台计算机
 *-        需要三个接口，CPU接口，内存接口EMS，硬盘接口HardDisk    
 *2019-07-19
 * @author L
 *
 */
public class Computer {
    private CPU cpu;
    private EMS ems;
    private HardDisk harddisk;
    
    public CPU getCpu() {
        return cpu;
    }
    public void setCpu(CPU cpu) {
        this.cpu = cpu;
    }
    public EMS getEms() {
        return ems;
    }
    public void setEms(EMS ems) {
        this.ems = ems;
    }
    public HardDisk getHardisk() {
        return harddisk;
    }
    public void setHardisk(HardDisk harddisk) {
        this.harddisk = harddisk;
    }
    
    
    //计算机信息输出
    public void print() {
        System.out.println("计算机的信息如下：");
        System.out.println("CPU的品牌是："+cpu.getBrand()+",主频是："+cpu.getMain());
        System.out.println("硬盘的容量是："+harddisk.getCapacity());
        System.out.println("内存的容量是："+ems.getCapacity()+"，类型是："+ems.getType());
    }
    
}

【测试】

package com.computer;
/**
 * -    测试类
 * -    输出计算机的信息
 * 2019-07-19
 * @author L
 *
 */
public class Test {
    public static void main(String[] args) {
        Computer computer=new Computer();
        CPU cpu =new CPUVendor();
        EMS ems =new EMSVendor();
        HardDisk harddisk=new HardDiskVendor();
        
        computer.setCpu(cpu);
        computer.setEms(ems);
        computer.setHardisk(harddisk);
        
        computer.print();
        
        
        
    }
}

【结果】