Question

Create a File menu in your GUI. Add a file menu to your clockGUI with options to open any file for reading ( and displaying the file as in Project2) and one to Quit the

program.You will need a FileMeu Handler classto handle the events from FileMenu. Be sure to use getAbsolutepath() when getting the file from JFileChooser, not getName().

Handle Exceptions

A data file will be provided that will contain errors (eg- hours>23,minutes>59, seconds>59). Create an exception called IllegalClockException (by extending IllegalArgumentException as shown in lecture) and have the constructor of the Clock throw it.Use a try/catch statement to catch this exception in your program and print the erroneous clock

to the console (do not add it to linked lists).

Create a jar file called Project3.jar and submit that to the Blackboard by the due date for full credit.

Language- Java

Answer 1

Clock.java

public class Clock {
private int hours, minutes, seconds;
  
public Clock()
{
this.hours = this.minutes = this.seconds = 0;
}

public Clock(int hours, int minutes, int seconds) {
if(hours > 23 || minutes > 59 || seconds > 59)
throw new IllegalClockException(hours + ":" + minutes + ":" + seconds);
  
this.hours = hours;
this.minutes = minutes;
this.seconds = seconds;
}

public int getHours() {
return hours;
}

public int getMinutes() {
return minutes;
}

public int getSeconds() {
return seconds;
}
  
@Override
public String toString()
{
return(this.hours + ":" + this.minutes + ":" + this.seconds);
}
}

Project3.java (Main class)

import java.awt.BorderLayout;
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.File;
import java.io.FileNotFoundException;
import java.util.ArrayList;
import java.util.Scanner;
import javax.swing.BorderFactory;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.border.Border;
import javax.swing.filechooser.FileNameExtensionFilter;

public class Project3 {
  
private static JFrame mainFrame;
private static JPanel mainPanel, leftPanel, rightPanel;
private static JTextArea errorRes, noErrorRes;
private static JMenuBar menuBar;
private static JMenu menu;
private static JMenuItem openMenu, quitMenu;
  
private static ArrayList<Clock> clocks;
private static ArrayList<String> errorClocks;
  
public static void main(String[] args)
{
clocks = new ArrayList<>();
errorClocks = new ArrayList<>();
  
mainFrame = new JFrame("Clock GUI");
mainPanel = new JPanel(new BorderLayout());
  
menuBar = new JMenuBar();
menu = new JMenu("File");
openMenu = new JMenuItem("Open");
quitMenu = new JMenuItem("Quit");
menu.add(openMenu);
menu.add(quitMenu);
menuBar.add(menu);
mainFrame.setJMenuBar(menuBar);
  
leftPanel = new JPanel(new FlowLayout(FlowLayout.CENTER));
noErrorRes = new JTextArea(20, 30);
noErrorRes.setEditable(false);
Border leftBorder = BorderFactory.createTitledBorder("No Error");
JScrollPane leftScroll = new JScrollPane(noErrorRes);
noErrorRes.setBorder(leftBorder);
leftPanel.add(leftScroll);
  
rightPanel = new JPanel(new FlowLayout(FlowLayout.CENTER));
errorRes = new JTextArea(20, 30);
errorRes.setEditable(false);
Border rightBorder = BorderFactory.createTitledBorder("Error");
JScrollPane rightScroll = new JScrollPane(errorRes);
errorRes.setBorder(rightBorder);
rightPanel.add(rightScroll);
  
mainPanel.add(leftPanel, BorderLayout.WEST);
mainPanel.add(rightPanel, BorderLayout.EAST);
  
mainFrame.add(mainPanel);
mainFrame.setSize(660, 420);
mainFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
mainFrame.setLocationRelativeTo(null);
mainFrame.setVisible(true);
  
// action listeners for the menu items
openMenu.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
JFileChooser fileChooser = new JFileChooser();
fileChooser.addChoosableFileFilter(new FileNameExtensionFilter("*.txt", "txt"));
int status = fileChooser.showOpenDialog(null);
if(status == JFileChooser.APPROVE_OPTION)
{
File file = fileChooser.getSelectedFile();
String filePath = file.getAbsolutePath();
readClockData(filePath);
  
if(clocks.isEmpty())
{
JOptionPane.showMessageDialog(null, "No clock data found in the list!");
return;
}
for(Clock c : clocks)
noErrorRes.append(c.toString() + System.lineSeparator());
  
if(errorClocks.isEmpty())
{
JOptionPane.showMessageDialog(null, "All clock data are good!");
return;
}
for(String s : errorClocks)
errorRes.append(s + System.lineSeparator());
}
}
});
  
quitMenu.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
System.exit(0);
}
});
}
  
private static void readClockData(String filename)
{
Scanner fileReader;
  
try
{
fileReader = new Scanner(new File(filename));
while(fileReader.hasNextLine())
{
String line;
try
{
line = fileReader.nextLine().trim();
String[] data = line.split(":");
if(data.length != 3)
errorClocks.add(line);
else
{
int hours = Integer.parseInt(data[0]);
int minutes = Integer.parseInt(data[1]);
int seconds = Integer.parseInt(data[2]);

clocks.add(new Clock(hours, minutes, seconds));
}
}catch(IllegalClockException ice){
errorClocks.add(ice.getMessage());
}
}
fileReader.close();
}catch(FileNotFoundException fnfe){
JOptionPane.showMessageDialog(null, filename + " could not be found!");
System.exit(0);
}
}
}

********************************************************** SCREENSHOT ******************************************************

Clock GUI File Error 2:30 29:30:59 6:64:34 27:80:75 No Error 2:25:24 1:30:0 13:30:0 15:28:39 5:15:45 2:30:59 8:15:12 6:56:34 9:25:0 7:45:42 11:10:0 2:45:0 23:24:25 23:0:0