Jawaban dari Clean Code For Class

BadClass.java

class Volume{
     public static void main(String args[]){
         Box b = new Box(5,5,5);
         System.out.println(b.volume);
     }
}

class Box {
     public int volume;
     Box(int length, int width, int height){
         this.volume = length * width * height;
     }
}

CleanClass.java

class Volume{
     public static void main(String args[]){
         Box b = new Box(5,5,5);
         System.out.println(b.getVolume());
     }
}

final class Box{
     private int volume;
     Box(int length, int width, int height){
         this.volume = length * width * height;
     }
     
     public int getVolume(){ 
         return volume; 
          
     }
}