Would Any One Happen To Know.....
If There's A Possible Form Of Exception Handling For This Program Besides Exception(ex. NumberFormatException, ArithmaticException, & etc.)
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Here's The main() class
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import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
publicclass UseBookFinalextends JFrameimplements ActionListener
{
JLabel nonFictionLabel =new JLabel("Enter The Name Of A Non-Fictional Book");
JLabel fictionLabel =new JLabel("Enter The Name Of A Fictional Book");
JTextField nonFictionName =new JTextField(40);
JTextField fictionName =new JTextField(40);
JButton OK =new JButton("OK");
JTextField nonFictionResult =new JTextField(40);
JTextField fictionResult =new JTextField(40);
public UseBookFinal()
{
super("Please Select A Book");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JPanel pane =new JPanel();
pane.add(nonFictionLabel);
pane.add(nonFictionName);
pane.add(fictionLabel);
pane.add(fictionName);
pane.add(OK);
pane.add(nonFictionResult);
pane.add(fictionResult);
setContentPane(pane);
OK.addActionListener(this);
}
publicstaticvoid main(String[] args)
{
JFrame aFrame =new UseBookFinal();
aFrame.setSize(500,250);
aFrame.setVisible(true);
}
publicvoid actionPerformed(ActionEvent e)
{
NonFictionFinal aBook =new NonFictionFinal();
FictionFinal anotherBook =new FictionFinal();
String nonFictionTitle;
String fictionTitle;
try
{
nonFictionTitle = nonFictionName.getText();
aBook.setTitle(nonFictionTitle);
fictionTitle = fictionName.getText();
anotherBook.setTitle(fictionTitle);
}
catch(Exception error)
{
nonFictionResult.setText("Invalid Selection");
fictionResult.setText("Invalid Selection");
}
nonFictionResult.setText(aBook.getTitle() +" Is A Non-Fictional Book That Costs " + aBook.getPrice());
fictionResult.setText(anotherBook.getTitle() +" Is A Fictional Book That Costs " + anotherBook.getPrice());
}
}
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Here's The Parent Class
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publicabstractclass BookFinal
{
private String title;
protecteddouble price;
public BookFinal()
{
setPrice();
}
publicvoid setTitle(String name)
{
title = name;
}
public String getTitle()
{
return title;
}
publicdouble getPrice()
{
return price;
}
publicabstractvoid setPrice();
}
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Here Child Class #1
******************************************************************************
publicclass FictionFinalextends BookFinal
{
public FictionFinal()
{
super();
}
publicvoid setPrice()
{
price = 24.99;
}
}
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Here's Child Class #2
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publicclass NonFictionFinalextends BookFinal
{
public NonFictionFinal()
{
super();
}
publicvoid setPrice()
{
price = 37.99;
}
}
