[实验任务一]：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。
实验要求：
1. 提交类图；
2. 提交源代码；
public class CPU {
public void run(){
System.out.println("处理器运行");
}
public void off(){
System.out.println("处理器关闭");
}
}
public class Disk {
public void read(){
System.out.println("硬盘读取");
}
public void off(){
System.out.println("硬盘关闭");
}
}
public class Memory {
public void check(){
System.out.println("内存自检");
}
public void off(){
System.out.println("内存关闭");
}
}
public class OS {
public void load(){
System.out.println("操作系统载入");
}
public void off(){
System.out.println("操作系统关闭");
}
}
public class Mainframe {
private Memory memory;
private CPU cpu;
private Disk disk;
private OS os;
public Mainframe(){
memory = new Memory();
cpu = new CPU();
disk = new Disk();
os = new OS();
}
public void on(){
memory.check();
cpu.run();
disk.read();
os.load();
}
public void off(){
memory.off();
cpu.off();
disk.off();
os.off();
}
}
package rjsj.no12;
public class Client {
public static void main(String[] args) {
Mainframe mainframe = new Mainframe();
System.out.println("电脑启动中...");
mainframe.on();
System.out.println("启动完成。");
System.out.println("电脑关闭中...");
mainframe.off();
System.out.println("关闭完成。");
}
}
#include <iostream>
using namespace std;
class Memory{
public:
void check(){
cout<<"内存自检"<<endl;
}
void off(){
cout<<"内存关闭"<<endl;
}
};
class Cpu{
public:
void run(){
cout<<"CPU运行"<<endl;
}
void off(){
cout<<"CPU关闭"<<endl;
}
};
class HardDisk{
public:
void read(){
cout<<"硬盘读取"<<endl;
}
void off(){
cout<<"硬盘关闭"<<endl;
}
};
class Os{
public:
void load(){
cout<<"操作系统加载"<<endl;
}
void off(){
cout<<"操作系统关闭"<<endl;
}
};
class MainFrame{
private:
Memory w1;
Cpu w2;
HardDisk w3;
Os w4;
public:
void on(){
cout<<"开机中......"<<endl;
w1.check();
w2.run();
w3.read();
w4.load();
}
void off(){
cout<<"关机中......"<<endl;
w1.off();
w2.off();
w3.off();
w4.off();
}
};
int main(){
MainFrame w;
w.on();
w.off();
return 0;
}
3.注意编程规范。