一、任务
计算机开启
在计算机主机(Mainframe)中,只需要按下主机的开机按钮(on()),即可调用其他硬件设备和软件的启动方法 ,如内存(Memory)的自检(check())、CPU的运行(run())、硬盘(HardDisk)的读取(read())、操作系统(OS)的载入(load()),如果某一过程发生错误则计算机启动失败。
二、类图
三、代码
1、Java代码
Client
1 package tutorial12; 2 3 public class Client { 4 5 public static void main(String[] args) { 6 // TODO 自动生成的方法存根 7 8 Mainframe mainframe=new Mainframe(); 9 mainframe.show(); 10 } 11 12 }
1 package tutorial12; 2 3 public class CPU { 4 5 public void run() { 6 System.out.println("CPU开始启动....."); 7 System.out.println("CPU正常运行\n"); 8 } 9 }
1 package tutorial12; 2 3 public class HardDisk { 4 public void read() { 5 System.out.println("HardDisk开始启动....."); 6 System.out.println("HardDisk正常运行\n"); 7 } 8 }
1 package tutorial12; 2 3 public class Mainframe { 4 5 private CPU cpu; 6 private Memory memory; 7 private OS os; 8 private HardDisk hardDisk; 9 10 public Mainframe() { 11 12 memory=new Memory(); 13 cpu=new CPU(); 14 os=new OS(); 15 hardDisk=new HardDisk(); 16 } 17 18 public void show() { 19 cpu.run(); 20 memory.check(); 21 hardDisk.read(); 22 os.load(); 23 24 } 25 }
1 package tutorial12; 2 3 public class Memory { 4 public void check() { 5 System.out.println("Memory开始启动....."); 6 System.out.println("Memory正常运行\n"); 7 } 8 }
1 package tutorial12; 2 3 public class OS { 4 public void load() { 5 System.out.println("OS开始启动....."); 6 System.out.println("OS正常运行\n"); 7 } 8 }
2、C++代码
1 #include<iostream> 2 using namespace std; 3 class Memory { 4 public: 5 void check() { 6 cout << "开始检查内存情况..." << endl; 7 cout << "内存正常" << endl<<endl; 8 } 9 }; 10 class Cpu { 11 public: 12 void run() { 13 cout << "开始检查CPU情况..." << endl; 14 cout << "CPU运行正常" << endl<<endl; 15 } 16 }; 17 class HardDisk { 18 public: 19 void read() { 20 cout << "开始检查磁盘读取情况..." << endl; 21 cout << "磁盘读取正常" << endl<<endl; 22 } 23 }; 24 class OS { 25 public: 26 void load() { 27 cout << "开始检查操作系统情况..." << endl; 28 cout << "操作系统载入正常" << endl<<endl; 29 } 30 31 }; 32 class MainFrame { 33 private: 34 Memory memory; 35 Cpu cpu; 36 OS os; 37 HardDisk harddisk; 38 39 public: 40 void show() { 41 memory.check(); 42 cpu.run(); 43 harddisk.read(); 44 os.load(); 45 cout << "开机正常" << endl; 46 } 47 }; 48 49 void main() 50 { 51 MainFrame mf; 52 mf.show(); 53 }
四、结果
1、Java结果截图
2、C++结果截图: