Java design patterns

Innocent Ibex answered on May 22, 2022 Popularity 10/10 Helpfulness 1/10

answer Java design patterns

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Java design patterns

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public class OctalObserver extends Observer{

   public OctalObserver(Subject subject){
      this.subject = subject;
      this.subject.attach(this);
   }

   @Override
   public void update() {
     System.out.println( "Octal String: " + Integer.toOctalString( subject.getState() ) ); 
   }
}

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Source: www.tutorialspoint.com

Tags: design-patterns java

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Contributed on May 22 2022

Innocent Ibex

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Java design patterns

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public abstract class Observer {
   protected Subject subject;
   public abstract void update();
}

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Source: www.tutorialspoint.com

Tags: design-patterns

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Contributed on May 22 2022

Innocent Ibex

0 Answers Avg Quality 2/10

Java design patterns

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public class BinaryObserver extends Observer{

   public BinaryObserver(Subject subject){
      this.subject = subject;
      this.subject.attach(this);
   }

   @Override
   public void update() {
      System.out.println( "Binary String: " + Integer.toBinaryString( subject.getState() ) ); 
   }
}

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Contributed on May 22 2022

Innocent Ibex

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Java design patterns

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First state change: 15
Hex String: F
Octal String: 17
Binary String: 1111
Second state change: 10
Hex String: A
Octal String: 12
Binary String: 1010

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Contributed on May 22 2022

Innocent Ibex

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Java design patterns

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-1

public class HexaObserver extends Observer{

   public HexaObserver(Subject subject){
      this.subject = subject;
      this.subject.attach(this);
   }

   @Override
   public void update() {
      System.out.println( "Hex String: " + Integer.toHexString( subject.getState() ).toUpperCase() ); 
   }
}

Popularity 10/10 Helpfulness 1/10 Language java

Source: www.tutorialspoint.com

Tags: design-patterns

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Contributed on May 22 2022

Innocent Ibex

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Java design patterns

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