testcommand.java

JAVA编程百例书中各章节的所有例子的源代码,包括套接字编程

package ch10.section04;

public class TestCommand {

  public TestCommand() {
  }

  public static void main(String[] args) {
    Light testLight = new Light();
    LightOnCommand testLOC = new LightOnCommand(testLight);
    LightOffCommand testLFC = new LightOffCommand(testLight);
    Switch testSwitch = new Switch(testLOC, testLFC);
    testSwitch.flipUp();
    testSwitch.flipDown();
    Fan testFan = new Fan();
    FanOnCommand foc = new FanOnCommand(testFan);
    FanOffCommand ffc = new FanOffCommand(testFan);
    Switch ts = new Switch(foc, ffc);
    ts.flipUp();
    ts.flipDown();
  }
}

//----------  Class Fan  ------------------------------
class Fan {
  public void startRotate() {
    System.out.println("Fan is Rotating now !");
  }

  public void stopRotate() {
    System.out.println("Fan is stop now !");
  }
}

//----------  Class Light  ----------------------------
class Light {
  public void turnOn() {
    System.out.println("Light is on now !");
  }

  public void turnOff() {
    System.out.println("Light is off now !");
  }
}

//----------  Class Switch  ---------------------------
class Switch {
  private Command UpCommand, DownCommand;
  public Switch(Command Up, Command Down) {
    UpCommand = Up;
    DownCommand = Down;
  }

  void flipUp() {
    UpCommand.execute();
  }

  void flipDown() {
    DownCommand.execute();
  }
}

//----------  Class LightOnCommand  -------------------
class LightOnCommand
    implements Command {
  private Light myLight;
  public LightOnCommand(Light L) {
    myLight = L;
  }

  public void execute() {
    myLight.turnOn();
  }
}

//----------  Class LightOffCommand  ------------------
class LightOffCommand
    implements Command {
  private Light myLight;
  public LightOffCommand(Light L) {
    myLight = L;
  }

  public void execute() {
    myLight.turnOff();
  }
}

//----------  Class FanOnCommand  ---------------------
class FanOnCommand
    implements Command {
  private Fan myFan;
  public FanOnCommand(Fan F) {
    myFan = F;
  }

  public void execute() {
    myFan.startRotate();
  }
}

//----------  Class FanOffCommand  ---------------------
class FanOffCommand
    implements Command {
  private Fan myFan;
  public FanOffCommand(Fan F) {
    myFan = F;
  }

  public void execute() {
    myFan.stopRotate();
  }
}