Click here to watch in Youtube : https://www.youtube.com/watch?v=Nfrb0xqhPeg
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| State Design pattern - Real time example [Project] |
See also:
Monday, 27 January 2014
State Design pattern - Real time example [Project]
Click here to watch in Youtube : https://www.youtube.com/watch?v=Nfrb0xqhPeg
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See also:
State Design pattern - Class Diagram
Click here to watch in Youtube : https://www.youtube.com/watch?v=HPZrKSpx70o
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| State Design pattern - Class Diagram |
See also:
Sunday, 26 January 2014
Bridge Design pattern - Implementation [LED TV]
Click here to watch in Youtube : https://www.youtube.com/watch?v=iCSrIzVSZwM
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| Bridge Design pattern - Implementation [LED TV] |
 |
| Bridge Design pattern - Implementation [LED TV] - Class Diagram |
LEDTV.java
public interface LEDTV
{
public void switchOn();
public void switchOff();
public void setChannel(int channelNumber);
}
SamsungLedTv.java
public class SamsungLedTv implements LEDTV
{
@Override
public void switchOn()
{
System.out.println("Turning ON.. Samsung TV.");
}
@Override
public void switchOff()
{
System.out.println("Turning Off.. Samsung TV.");
}
@Override
public void setChannel( int channelNumber )
{
System.out.println("Setting channel Number " + channelNumber + ".. on Samsung TV");
}
}
SonyLedTv.java
public class SonyLedTv implements LEDTV
{
@Override
public void switchOn()
{
System.out.println("Turning ON.. Sony TV.");
}
@Override
public void switchOff()
{
System.out.println("Turning Off.. Sony TV.");
}
@Override
public void setChannel( int channelNumber )
{
System.out.println("Setting channel Number " + channelNumber + ".. on Sony TV");
}
}
AbstractRemoteControl.java
abstract class AbstractRemoteControl
{
protected LEDTV ledTv;
protected AbstractRemoteControl( LEDTV ledTv )
{
this.ledTv = ledTv;
}
public abstract void switchOn();
public abstract void switchOff();
public abstract void setChannel( int channelNumber );
}
SamsungRemoteControl.java
public class SamsungRemoteControl extends AbstractRemoteControl
{
public SamsungRemoteControl( LEDTV ledtv )
{
super(ledtv);
}
@Override
public void switchOn()
{
ledTv.switchOn();
}
@Override
public void switchOff()
{
ledTv.switchOff();
}
@Override
public void setChannel( int channelNumber )
{
ledTv.setChannel(channelNumber);
}
}
SonyRemoteControl.java
{
public SonyRemoteControl( LEDTV ledtv )
{
super(ledtv);
}
@Override
public void switchOn()
{
ledTv.switchOn();
}
@Override
public void switchOff()
{
ledTv.switchOff();
}
@Override
public void setChannel( int channelNumber )
{
ledTv.setChannel(channelNumber);
}
}
Client.java
public class Client
{
public static void main( String[] args )
{
SonyRemoteControl sonyRemoteControl = new SonyRemoteControl(new SonyLedTv());
sonyRemoteControl.switchOn();
sonyRemoteControl.switchOff();
sonyRemoteControl.setChannel(20);
System.out.println("**********************************************************************");
SamsungRemoteControl samsungRemoteControl = new SamsungRemoteControl(new SamsungLedTv());
samsungRemoteControl.switchOn();
samsungRemoteControl.switchOff();
samsungRemoteControl.setChannel(20);
}
}
Output
Turning ON.. Sony TV.
Turning Off.. Sony TV.
Setting channel Number 20.. on Sony TV
**********************************************************************
Turning ON.. Samsung TV.
Turning Off.. Samsung TV.
Setting channel Number 20.. on Samsung TV
See also:
Bridge Design pattern - Implementation [Publish Message]
Click here to watch in Youtube : https://www.youtube.com/watch?v=Q2L3FGnjPu0
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 |
| Bridge Design pattern - Implementation [Publish Message] |
 |
| Bridge Design pattern - Implementation [Publish Message] - Class Diagram |
MessagePublisher.java
public interface MessagePublisher
{
public void publishMessage(String message);
}
Facebook.java
public class Facebook implements MessagePublisher
{
public void publishMessage(String message)
{
System.out.println("'"+message+ "' : This message has been published to public in Facebook Social networking site");
}
}
Twitter.java
public class Twitter implements MessagePublisher
{
public void publishMessage(String message)
{
System.out.println("'"+message+ "' : This message has been published to public in Twitter Social networking site");
}
}
GooglePlus.java
public class GooglePlus implements MessagePublisher
{
public void publishMessage(String message)
{
System.out.println("'"+message+ "' : This message has been published to public in GooglePlus Social networking site");
}
}
Message.java
abstract class Message
{
protected MessagePublisher messagePublisher;
protected MessagePublisher getMessagePublisher()
{
return messagePublisher;
}
protected void setMessagePublisher( MessagePublisher messagePublisher )
{
this.messagePublisher = messagePublisher;
}
abstract public void publishMessage(String message);
}
LongMessage.java
public class LongMessage extends Message
{
@Override
public void publishMessage( String message )
{
messagePublisher.publishMessage(message);
}
}
ShortMessage.java
public class ShortMessage extends Message
{
private static int MESSAGE_LENGTH = 200;
@Override
public void publishMessage( String message )
{
if( message.length() <= MESSAGE_LENGTH )
{
messagePublisher.publishMessage(message);
}
else
{
System.out.println("Sorry message length is more cann't publish.....");
}
}
}
Client.java
import java.util.Scanner;
public class Client
{
public static void main( String[] args )
{
System.out.println("Please enter the Social networking site you want to use to publish the message : 'Twitter' or 'Facebook' or 'GooglePlus'");
Scanner scanner = new Scanner(System.in);
String socialNetworkingSite = scanner.next();
System.out.println("Please enter the message you want to publish");
Scanner scanner1 = new Scanner(System.in);
String message = scanner1.nextLine();
if( "Twitter".equalsIgnoreCase(socialNetworkingSite) )
{
ShortMessage shortMessage = new ShortMessage();
shortMessage.setMessagePublisher(new Twitter());
shortMessage.publishMessage(message);
}
else if( "Facebook".equalsIgnoreCase(socialNetworkingSite) )
{
LongMessage longMessage = new LongMessage();
longMessage.setMessagePublisher(new Facebook());
longMessage.publishMessage(message);
}
else if( "GooglePlus".equalsIgnoreCase(socialNetworkingSite) )
{
LongMessage longMessage = new LongMessage();
longMessage.setMessagePublisher(new GooglePlus());
longMessage.publishMessage(message);
}
}
}
Output
Please enter the Social networking site you want to use to publish the message : 'Twitter' or 'Facebook' or 'GooglePlus'
Twitter
Please enter the message you want to publish
hello
'hello' : This message has been published to public in Twitter Social networking site
Please enter the Social networking site you want to use to publish the message : 'Twitter' or 'Facebook' or 'GooglePlus'
Facebook
Please enter the message you want to publish
hello bow are you?
'hello bow are you?' : This message has been published to public in Facebook Social networking site
See also:
Saturday, 25 January 2014
State Design pattern - Real time example [Vending Machine]
Click here to watch in Youtube : https://www.youtube.com/watch?v=Ole4PaPb3uQ
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| State Design pattern - Real time example [Vending Machine] |
See also:
State Design pattern - Real time example [TV Remote]
Click here to watch in Youtube : https://www.youtube.com/watch?v=JM6abyZ0snc
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 |
| State Design pattern - Real time example [TV Remote] |
 |
| State Design pattern - Real time example [TV Remote] |
See also:
State Design pattern - Real time example [ATM]
Click here to watch in Youtube : https://www.youtube.com/watch?v=ELS2v7pHLgI
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 |
| State Design pattern - Real time example [ATM] |
See also:
State Design pattern - Introduction
Click here to watch in Youtube : https://www.youtube.com/watch?v=8jy_fXI1OzA
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 |
| State Design pattern - Introduction |
 |
| State Design pattern - Introduction |
See also:
State Design pattern - Keypoints
Click here to watch in Youtube : https://www.youtube.com/watch?v=vh14eePIICg
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Bridge Design pattern - Implementation [Send Message]
Click here to watch in Youtube : https://www.youtube.com/watch?v=Sqpgv1QMIPk
Click the below Image to Enlarge
 |
| Bridge Design pattern - Implementation [Send Message] |
 |
| Bridge Design pattern - Implementation [Send Message] - Class Diagram |
MessageSender.java
public interface MessageSender
{
public void sendMessage(String message);
}
SmsMessageSender.java
public class SmsMessageSender implements MessageSender
{
public void sendMessage(String message)
{
System.out.println("'"+message+ "' : This Message has been sent using SMS");
}
}
EmailMessageSender.java
public class EmailMessageSender implements MessageSender
{
public void sendMessage(String message)
{
System.out.println("'"+message+ "' : This Message has been sent using Email");
}
}
Message.java
abstract class Message
{
protected MessageSender messageSender;
abstract public void sendMessage(String message);
}
ShortMessage.java
public class ShortMessage extends Message
{
public ShortMessage(MessageSender messageSender)
{
super.messageSender = messageSender;
}
@Override
public void sendMessage(String message)
{
if(message.length()<=5)
{
messageSender.sendMessage(message);
}
else
{
System.out.println("Sorry cannot send the message.....");
}
}
}
LongMessage.java
public class LongMessage extends Message
{
public LongMessage(MessageSender messageSender)
{
super.messageSender = messageSender;
}
@Override
public void sendMessage(String message)
{
messageSender.sendMessage(message);
}
}
Client.java
import java.util.Scanner;
public class Client
{
public static void main(String[] args)
{
System.out.println("Do you want to send 'longmessage' or 'shortmessage' ?");
Scanner scanner = new Scanner(System.in);
String messageType = scanner.next();
System.out.println("Please enter the message you want to send");
Scanner scanner1 = new Scanner(System.in);
String message = scanner1.nextLine();
if (messageType.equalsIgnoreCase("longmessage"))
{
Message longMessage = new LongMessage(new EmailMessageSender());
longMessage.sendMessage(message);
}
else
{
Message shortMessage = new ShortMessage(new SmsMessageSender());
shortMessage.sendMessage(message);
}
}
}
Output
Do you want to send 'longmessage' or 'shortmessage' ?
longmessage
Please enter the message you want to send
Hello how are you ? when did you come?
'Hello how are you ? when did you come?' : This Message has been sent using Email
Do you want to send 'longmessage' or 'shortmessage' ?
shortmessage
Please enter the message you want to send
hi
'hi' : This Message has been sent using SMS
Friday, 17 January 2014
Bridge Design pattern - Implementation [Shape]
Click here to watch in Youtube : https://www.youtube.com/watch?v=ztdhlaWL5S0
Click the below Image to Enlarge
 |
| Bridge Design pattern - Implementation [Shape] |
 |
| Bridge Design pattern - Implementation [Shape] - Class Diagram |
Shape.java
abstract class Shape
{
protected ColorImplementor color;
protected ColorImplementor getColor()
{
return color;
}
protected void setColor( ColorImplementor color )
{
this.color = color;
}
abstract public void colorIt();
abstract public void draw();
}
Circle.java
{
public void colorIt()
{
System.out.print("Circle filled with ");
color.fillColor();
}
@Override
public void draw()
{
System.out.println("Circle has been drawn with out any color");
}
}
Rectangle.java
public class Rectangle extends Shape
{
public void colorIt()
{
System.out.print("Rectangle filled with ");
color.fillColor();
}
@Override
public void draw()
{
System.out.println("Rectangale has been drawn with out any color");
}
}
ColorImplementor.java
public interface ColorImplementor
{
public void fillColor();
}
BlueColorImplementor.java
public class BlueColorImplementor implements ColorImplementor
{
public void fillColor()
{
System.out.println("blue color using BlueColorImplementor");
}
}
GreenColorImplementor .java
public class GreenColorImplementor implements ColorImplementor
{
public void fillColor()
{
System.out.println("green color using GreenColorImplementor");
}
}
BridgeDesignPatternClient.java
import java.util.Scanner;
public class BridgeDesignPatternClient
{
public static void main( String[] args )
{
System.out.println("Please enter the color you want to fill : 'Green' or 'Blue'");
Scanner scanner = new Scanner(System.in);
String color = scanner.next();
System.out.println("color : " + color);
Shape rectangleShape = new Rectangle();
rectangleShape.draw();
Shape circleShape = new Circle();
circleShape.draw();
System.out.println();
if( "blue".equalsIgnoreCase(color) )
{
rectangleShape.setColor(new BlueColorImplementor());
rectangleShape.colorIt();
circleShape.setColor(new BlueColorImplementor());
circleShape.colorIt();
}
else if( "green".equalsIgnoreCase(color) )
{
rectangleShape.setColor(new GreenColorImplementor());
rectangleShape.colorIt();
circleShape.setColor(new GreenColorImplementor());
circleShape.colorIt();
}
}
}
Output
Please enter the color you want to fill : 'Green' or 'Blue'
Green
color : Green
Rectangale has been drawn with out any color
Circle has been drawn with out any color
Rectangle filled with green color using GreenColorImplementor
Circle filled with green color using GreenColorImplementor
Please enter the color you want to fill : 'Green' or 'Blue'
Blue
color : Blue
Rectangale has been drawn with out any color
Circle has been drawn with out any color
Rectangle filled with blue color using BlueColorImplementor
Circle filled with blue color using BlueColorImplementor
Bridge Design pattern - Real time example [TV]
Click here to watch in Youtube : https://www.youtube.com/watch?v=qOVAIVt1dkA
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 |
| Bridge Design pattern - Real time example [TV] |
See also:
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