Question

Create a class named Poem that contains fields for the name of the poem and the number of lines in it. Include a constructor that requires values for both fields. Also, include get methods to retrieve field values. Create three subclasses: Couplet, Limerick, and Haiku. The constructor for each subclass requires only a title; the lines field is set using a constant value. A couplet has two lines, a limerick has five lines, and a haiku has three lines. Create an application that demonstrates usage of an object of each type. Save the files as Poem.java, Couplet.java, Limerick.java, Haiku.java, and DemoPoems.java.

Answer 1

Poem.java

package demopoems;




public class Poem {
    
private String name;
private int number_of_lines;
Poem(){
    
}
    Poem(String s, int n){
        name = s;
        number_of_lines = n;
        
    }
    String getName(){
        return name;
    }
    int getNumber(){
        return number_of_lines;
    }
}

Couplet.java

package demopoems;


public class Couplet extends Poem {
    private String title; 
   private int lines;
  Couplet(String t){
      super(t,2);
      
  }
  
  void display(){
      System.out.printf("Name:  %s\nNumber of lines: %d\n",getName(), getNumber());
  }
}

Limerick.java

package demopoems;




public class Limerick extends Poem{
   private String title; 
     private int lines;
    Limerick(String t){
        super(t, 5);
                
    } 
    void display(){
      System.out.printf("Name:  %s\nNumber of lines: %d\n",getName(), getNumber());
  }
}

DemoPoems.java

package demopoems;


  
public class DemoPoems {


    
    public static void main(String[] args) {
        Haiku h = new Haiku("Testing Haiku");
        Couplet c = new Couplet("Testing Couplet");
        Limerick l = new Limerick("Testing Limeric");
        
        h.display();
        c.display();
        l.display();
    }
    
}