Answer:
Couplet.java
public class Couplet extends Poem
{
private final static int LINES = 2;
public Couplet(String poemName)
{
super(poemName, LINES);
}
}
Haiku.java
public class Haiku extends Poem
{
private static int LINES = 3;
public Haiku(String poemName)
{
super(poemName, LINES);
}
}
Limerick.java
public class Limerick extends Poem
{
private static int LINES = 5;
public Limerick(String poemName)
{
super(poemName, LINES);
}
}
Poem.java
public class Poem
{
private String poemName;
private int lines;
public Poem(String poemName, int lines)
{
this.poemName = poemName;
this.lines = lines;
}
public String getPoemName()
{
return poemName;
}
public int getLines()
{
return lines;
}
}
DemoPoem.java
import java.util.*;
public class DemoPoems
{
public static void main(String[] args)
{
Poem poem1 = new Poem("The Raven", 84);
Couplet poem2 = new Couplet("True Wit");
Limerick poem3 = new Limerick("There was an Old Man with a Beard");
Haiku poem4 = new Haiku("The Wren");
display(poem1);
display(poem2);
display(poem3);
display(poem4);
}
public static void display(Poem p)
{
System.out.println("Poem: " + p.getPoemName() +
" Lines: " + p.getLines());
}
}
Explanation:
The Couplet and Limerick classes should also be <u>extended from Poem class</u>. Also, in display method, you call getTitle(), however, it's written as getPoemName() in the <em>Poem</em> class. You need to change the name.
