[DesignPattern - Adapter] sample1

Design Pattern - Adapter

1. 상속을 이용한 Adapter Pattern

1.1. 클래스다이어그램

1.2.Source

• Print.java
  

  package com.dazzilove.adapter.extend.sample1;
  
  public interface Print {
      public abstract void printWeak();
      public abstract void printStrong();
  }

• PrintBanner.java
  

  package com.dazzilove.adapter.extend.sample1;
  
  public class PrintBanner extends Banner implements Print {
      public PrintBanner(String string) {
          super(string);
      }
      
      public void printWeak() {
          showWithParen();
      }
      
      public void printStrong() {
          showWithAster();
      }
  }

• Banner.java
  

  package com.dazzilove.adapter.extend.sample1;
  
  public class Banner {
      private String string;
      
      public Banner(String string) {
          this.string = string;
      }
      
      public void showWithParen() {
          System.out.println("(" + string + ")");
      }
      
      public void showWithAster() {
          System.out.println("*" + string + "*");
      }
  }

• Main.java
  

  package com.dazzilove.adapter.extend.sample1;
  
  public class Main {
      public static void main(String[] args) {
          Print p = new PrintBanner("Hello");
          p.printWeak();
          p.printStrong();
      }
  }

1.3. 결과화면

2. 인스턴스를 이용한 Adapter Pattern

2.1. 클래스다이어그램

2.2.Source

• Banner.java
  

  package com.dazzilove.adapter.implement.sample1;
  
  public class Banner {
      private String string;
      
      public Banner(String string) {
          this.string = string;
      }
      
      public void showWithParen() {
          System.out.println("(" + string + ")");
      }
      
      public void showWithAster() {
          System.out.println("*" + string + "*");
      }
  }

• Print.java
  

  package com.dazzilove.adapter.implement.sample1;
  
  public abstract class Print {
      public abstract void printWeak();
      public abstract void printStrong();
  }

• PrintBanner.java
  

  package com.dazzilove.adapter.implement.sample1;
  
  public class PrintBanner extends Print {
  
      private Banner banner;
      
      public PrintBanner(String string) {
          this.banner = new Banner(string);
      }
  
      @Override
      public void printWeak() {
          banner.showWithParen();
      }
  
      @Override
      public void printStrong() {
          banner.showWithAster();
      }
  }

• Main.java
  

  package com.dazzilove.adapter.implement.sample1;
  
  public class Main {
      public static void main(String[] args) {
          Print p = new PrintBanner("Hello");
          p.printWeak();
          p.printStrong();
      }
  }

2.3. 결과화면