Question

Create a class named Poem that contains the following fields:

• title - the name of the poem (of type String)
• lines - the number of lines in the poem (of type int)

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.

Couplet.java

public class Couplet
{
// Define the Couplet class here
}

DemoPoems.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.getTitle() +
" Lines: " + p.getLines());
}
}

Haiku.java

public class Haiku
{
// Define the Haiku class here
}

Limerick.java

public class Limerick
{
// Define the Limerick class here
}

Poem.java

public class Poem
{
// Define the Poem class here
}

Answer 1

public class Poem {
    /*
    title - the name of the poem (of type String)
lines - the number of lines in the poem (of type int)
    * */
    private String title;
    private int lines;
    /*a constructor that requires values for both fields.*/
    public Poem(String title,int lines)
    {
        this.title= title;
        this.lines= lines;
    }
    /*get methods to retrieve field values.*/

    public String getTitle() {
        return title;
    }

    public int getLines() {
        return lines;
    }
}

==========================================

public class Couplet extends Poem{
    /*A couplet has two lines*/
    private static final int LINES=2;
    public Couplet(String title)
    {
        super(title,LINES);
    }
}

========================================

public class Limerick extends Poem{
    /*a limerick has five lines*/
    private static final int LINES=5;
    public Limerick(String title)
    {
        super(title,LINES);
    }
}

=====================================

public class Haiku extends Poem {
    /* a haiku has three lines.*/
    private static final int LINES=3;
    public Haiku(String title)
    {
        super(title,LINES);
    }
}

========================================

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.getTitle() +
                " Lines: " + p.getLines());
    }
}

===============================================

//output

//if you need any help regarding this solution........... please leave a comment ............ thanks