public static void main(String[] args) {
ElectronicDevice newDevice = TVRemote.getDevice();
TurnTVOn onCommand = new TurnTVOn(newDevice);
DeviceButton onPressed = new DeviceButton(onCommand);
onPressed.press();
}
public static void main(String[] args) {
ElectronicDevice device = TVRemote.getDevice();
TurnTVOn onCommand = new TurnTVOn(device);
DeviceButton onPressed = new DeviceButton(onCommand);
onPressed.press();
TurnTVOff offCommand = new TurnTVOff(device);
onPressed = new DeviceButton(offCommand);
onPressed.press();
TurnTVUp upCommand = new TurnTVUp(device);
onPressed = new DeviceButton(upCommand);
onPressed.press();
onPressed.press();
onPressed.press();
onPressed.press();
Television theTV = new Television();
Radio theRadio = new Radio();
List<ElectronicDevice> allDevices = new ArrayList<ElectronicDevice>();
allDevices.add(theRadio);
allDevices.add(theTV);
TurnAllOff turnOffDevices = new TurnAllOff(allDevices);
DeviceButton turnThemOff = new DeviceButton(turnOffDevices);
turnThemOff.press();
turnThemOff.pressUndo();
}
public static void main(String[] args) {
// Gets the ElectronicDevice to use
ElectronicDevice newDevice = TVRemote.getDevice();
// TurnTVOn contains the command to turn on the tv
// When execute() is called on this command object
// it will execute the method on() in Television
TurnTVOn onCommand = new TurnTVOn(newDevice);
// Calling the execute() causes on() to execute in Television
DeviceButton onPressed = new DeviceButton(onCommand);
// When press() is called theCommand.execute(); executes
onPressed.press();
// ----------------------------------------------------------
// Now when execute() is called off() of Television executes
TurnTVOff offCommand = new TurnTVOff(newDevice);
// Calling the execute() causes off() to execute in Television
onPressed = new DeviceButton(offCommand);
// When press() is called theCommand.execute(); executes
onPressed.press();
// ----------------------------------------------------------
// Now when execute() is called volumeUp() of Television executes
TurnTVUp volUpCommand = new TurnTVUp(newDevice);
// Calling the execute() causes volumeUp() to execute in Television
onPressed = new DeviceButton(volUpCommand);
// When press() is called theCommand.execute(); executes
onPressed.press();
onPressed.press();
onPressed.press();
// ----------------------------------------------------------
// Creating a TV and Radio to turn off with 1 press
Television theTV = new Television();
Radio theRadio = new Radio();
// Add the Electronic Devices to a List
List<ElectronicDevice> allDevices = new ArrayList<ElectronicDevice>();
allDevices.add(theTV);
allDevices.add(theRadio);
// Send the List of Electronic Devices to TurnItAllOff
// where a call to run execute() on this function will
// call off() for each device in the list
TurnItAllOff turnOffDevices = new TurnItAllOff(allDevices);
// This calls for execute() to run which calls for off() to
// run for every ElectronicDevice
DeviceButton turnThemOff = new DeviceButton(turnOffDevices);
turnThemOff.press();
// ----------------------------------------------------------
/*
* It is common to be able to undo a command in a command pattern
* To do so, DeviceButton will have a method called undo
* Undo() will perform the opposite action that the normal
* Command performs. undo() needs to be added to every class
* with an execute()
*/
turnThemOff.pressUndo();
// To undo more than one command add them to a LinkedList
// using addFirst(). Then execute undo on each item until
// there are none left. (This is your Homework)
}
