public void turnOff() {
System.out.println("System is shutting down");
powerOn = false;
cdrom.turnOff();
hdd.turnOff();
ram.turnOff();
cpu.turnOff();
}
public void turnOn() {
powerOn = true;
cpu.turnOn();
ram.turnOn();
hdd.turnOn();
cdrom.turnOn();
System.out.println("System is ready");
}
public void scanViruses() {
if (this.powerOn != false) {
String dataForScan = ram.read();
cpu.scanForVirus(ram, dataForScan);
dataForScan = hdd.read();
cpu.scanForVirus(hdd, dataForScan);
if (cdrom.isDiskInserted() == true) {
dataForScan = cdrom.read();
cpu.scanForVirus(cdrom, dataForScan);
} else {
System.out.println("No disk in CDROM");
}
} else {
System.out.println("Before scan, turn on your PC");
}
}