For this specific question, in depth knowledge in java programming is just paramount.

However, one problem remains: the programmer hired to complete this highly publicized release has decided to retire from the world of computing and become a lumberjack. We wish him all the best. i need to re-factor My Contact Manager v3 which is given below so that it now utilizes an ArrayList of the Contact class.

The GUI is unnecessary as a separate development team is designing the mobile GUI. They require only the Contact Manager functionality. Therefore, this implementation will be developed to operate via the command line

My CONTACT MANAGER V3

//written by - Adil Mahmood //Wednesday May 11 2022 /** * The Phone Book assignment class implements an application * Phone Book Assignment */ import java.util.Scanner; import java.util.Vector; import java.util.HashSet; import java.util.Iterator; import java.io.*; import java.awt.*;

Alignment Enhancement Line Spacing Space before (points) Space after (points) TY-Subhead sans-serif 16 centre all capitals, bold single 0 9 TY-Table serif 11 centre italic single 0 0 Take a screenshot to show that you have defined the settings for the TY-Subhead style. Make sure there is evidence that you have based this on the default paragraph style. Place this in your Evidence Document. [3]

4 Display these custom style names as a list in the style manager/organiser. Take screenshot evidence to show that you have created, named and saved these styles. Place this in your Evidence Document. [1]

5 The style name TY-Title has already been created, stored and applied to the title text. Modify the TY-Title style so only the following formatting is applied: Font Style Font Size (points) Alignment Enhancement Line Spacing Space before (points) Space after (points) TY-Title sans-serif 32 centre bold, underline single 0 6 Place in your Evidence Document a screenshot of the style settings for the TY-Title style to show that you have changed these.

6 Below the title, add a subtitle: Draft report by: and add your name. [1] 7 The style name TY-Subtitle has already been created and stored. Apply this style to the text you entered in Step 6. [1] 8 Change the page layout so that the subheading Global Analysis and all following text is displayed in two equally spaced columns with 2 centimetre spacing between the columns. [2] 9 Identify the 5 subheadings in the document and apply the TY-Subhead style to each one. [1] 10 Locate the table in the document. Sort the data in the table into descending order of Length in metres. [1] 11 Insert a new row between Germany and United Arab Emirates. Enter the following data into this row: Length in metres Number of Yachts import javax.swing.*; import java.awt.event.*; import javax.swing.border.*;

class PhoneInfo implements Serializable { String name; String phoneNumber;

public PhoneInfo(String name, String num) { this.name = name; phoneNumber = num; }

public void showPhoneInfo() { System.out.println("name: "+name); System.out.println("phone: "+phoneNumber); }

public String toString() { return "name: "+name+' '+"phone: "+phoneNumber+' '; }

public int hashCode() { return name.hashCode(); }

public boolean equals(Object obj) { PhoneInfo cmp = (PhoneInfo)obj; if(name.compareTo(cmp.name) == 0) return true; else return false; } }

class PhoneUnivInfo extends PhoneInfo { String major; int year;

public PhoneUnivInfo(String name, String num, String major, int year) { super(name, num); this.major=major; this.year=year; }

public void showPhoneInfo() { super.showPhoneInfo(); System.out.println("major: "+major); System.out.println("year: "+year); }

public String toString() { return super.toString() +"major: "+major+' '+"year: "+year+' '; } }

class PhoneCompanyInfo extends PhoneInfo { String company;

public PhoneCompanyInfo(String name, String num, String company) { super(name, num); this.company = company; }

public void showPhoneInfo() { super.showPhoneInfo(); System.out.println("company: "+company); }

public String toString() { return super.toString() +"company: "+company+' '; } }

class PhoneBookManager { private final File dataFile = new File("PhoneBook.dat"); HashSet infoStorage = new HashSet();

static PhoneBookManager inst = null; public static PhoneBookManager createManagerInst() { if(inst == null) inst = new PhoneBookManager(); return inst; }

private PhoneBookManager() { readFromFile(); }

public String searchData(String name) { PhoneInfo info = search(name); if(info == null) return null; else return info.toString(); }

public boolean deleteData(String name) { Iterator itr=infoStorage.iterator(); while(itr.hasNext()) { PhoneInfo curInfo=itr.next(); if(name.compareTo(curInfo.name) == 0) { itr.remove(); return true; } } return false; }

private PhoneInfo search(String name) { Iterator itr = infoStorage.iterator(); while(itr.hasNext()) { PhoneInfo curInfo=itr.next(); if(name.compareTo(curInfo.name) == 0) return curInfo; } return null; }

public void storeToFile() { try { FileOutputStream file = new FileOutputStream(dataFile); ObjectOutputStream out = new ObjectOutputStream(file); Iterator itr=infoStorage.iterator(); while(itr.hasNext()) out.writeObject(itr.next()); out.close(); } catch(IOException e) { e.printStackTrace(); } }

public void readFromFile() { if(dataFile.exists() == false) return; try { FileInputStream file = new FileInputStream(dataFile); ObjectInputStream in = new ObjectInputStream(file); while(true) { PhoneInfo info = (PhoneInfo)in.readObject(); if(info == null) break; infoStorage.add(info); } in.close(); } catch(IOException e) { return; } catch(ClassNotFoundException e) { return; } } }

class SearchEventHandler implements ActionListener { JTextField searchField; JTextArea textArea;

public SearchEventHandler(JTextField field, JTextArea area) { searchField=field; textArea=area; }

public void actionPerformed(ActionEvent e) { String name = searchField.getText(); PhoneBookManager manager=PhoneBookManager.createManagerInst(); String srchResult = manager.searchData(name); if(srchResult == null) { textArea.append("Search Failed: info does not exist. "); } else { textArea.append("Search Completed: "); textArea.append(srchResult); textArea.append(" "); } } }

class AddEventHandler implements ActionListener { JTextField name; JTextField phone; JTextField major; JTextField year; JTextField company; JTextArea text; Vector inputList = new Vector();

boolean isAdded;

PhoneInfo info; public AddEventHandler(JTextField nameField, JTextField phoneField, JTextField majorField, JTextField yearField, JTextArea textArea) { name = nameField; phone = phoneField; major = majorField; year = yearField; text = textArea; }

public void actionPerformed(ActionEvent e) { PhoneBookManager manager = PhoneBookManager.createManagerInst(); if(major.getText().equals("") == false && year.getText().equals("") == true) { company = major; info = new PhoneCompanyInfo(name.getText(), phone.getText(), company.getText()); isAdded = manager.infoStorage.add(info); } else if(major.getText().equals("") == false && year.getText().equals("") == false) { info = new PhoneUnivInfo(name.getText(), phone.getText(), major.getText(), Integer.parseInt(year.getText())); isAdded = manager.infoStorage.add(info); } else { info = new PhoneInfo(name.getText(), phone.getText()); isAdded = manager.infoStorage.add(info); } if(isAdded) { text.append("Update Completed. "); } else { text.append("Update Failed: info already exist. "); } } }

class DeleteEventHandler implements ActionListener { JTextField delField; JTextArea textArea;

public DeleteEventHandler(JTextField field, JTextArea area) { delField = field; textArea = area; }

public void actionPerformed(ActionEvent e) { String name = delField.getText(); PhoneBookManager manager = PhoneBookManager.createManagerInst(); boolean isDeleted = manager.deleteData(name); if(isDeleted) textArea.append("Remove Completed. "); else textArea.append("Remove Failed: info does not exist. "); } }

class MainFrame extends JFrame { JTextField srchField = new JTextField(15); JButton srchBtn = new JButton("SEARCH");

JButton addBtn = new JButton("ADD"); JRadioButton rbtn1 = new JRadioButton("General"); JRadioButton rbtn2 = new JRadioButton("University"); JRadioButton rbtn3 = new JRadioButton("Company"); ButtonGroup buttonGroup = new ButtonGroup();

JLabel nameLabel = new JLabel("NAME"); JTextField nameField = new JTextField(15); JLabel phoneLabel = new JLabel("PHONE NUMBER"); JTextField phoneField = new JTextField(15); JLabel majorLabel = new JLabel("MAJOR"); JTextField majorField = new JTextField(15); JLabel yearLabel = new JLabel("YEAR"); JTextField yearField = new JTextField(15); JTextField delField = new JTextField(15); JButton delBtn = new JButton("DEL");

JTextArea textArea = new JTextArea(10, 25);

public MainFrame(String title) { super(title); setBounds(100, 200, 330, 450); setSize(730,350); setLayout(new GridLayout(0,2,0,0)); Border border = BorderFactory.createEtchedBorder(); Border srchBorder = BorderFactory.createTitledBorder(border, "Search"); JPanel srchPanel = new JPanel(); srchPanel.setBorder(srchBorder); srchPanel.setLayout(new FlowLayout()); srchPanel.add(srchField); srchPanel.add(srchBtn); Border addBorder=BorderFactory.createTitledBorder(border, "Add"); JPanel addPanel = new JPanel(); addPanel.setBorder(addBorder); addPanel.setLayout(new FlowLayout()); JPanel addInputPanel = new JPanel(); addInputPanel.setLayout(new GridLayout(0,2,5,5)); buttonGroup.add(rbtn1); buttonGroup.add(rbtn2); buttonGroup.add(rbtn3); addPanel.add(rbtn1); addPanel.add(rbtn2); addPanel.add(rbtn3); addPanel.add(addBtn); addInputPanel.add(nameLabel); addInputPanel.add(nameField); addInputPanel.add(phoneLabel); addInputPanel.add(phoneField); addInputPanel.add(majorLabel); addInputPanel.add(majorField); addInputPanel.add(yearLabel); addInputPanel.add(yearField); majorLabel.setVisible(false); majorField.setVisible(false); yearLabel.setVisible(false); yearField.setVisible(false); rbtn1.setSelected(true); addPanel.add(addInputPanel); rbtn1.addItemListener( new ItemListener() { public void itemStateChanged(ItemEvent e) { if(e.getStateChange() == ItemEvent.SELECTED) { majorLabel.setVisible(false); majorField.setVisible(false); yearLabel.setVisible(false); yearField.setVisible(false); majorField.setText(""); yearField.setText(""); } } } ); rbtn2.addItemListener( new ItemListener() { public void itemStateChanged(ItemEvent e) { if(e.getStateChange() == ItemEvent.SELECTED) { majorLabel.setVisible(true); majorLabel.setText("MAJOR"); majorField.setVisible(true); yearLabel.setVisible(true); yearField.setVisible(true); } } } ); rbtn3.addItemListener( new ItemListener() { public void itemStateChanged(ItemEvent e) { if(e.getStateChange() == ItemEvent.SELECTED) { majorLabel.setVisible(true); majorLabel.setText("COMPANY"); majorField.setVisible(true); yearLabel.setVisible(false); yearField.setVisible(false); yearField.setText(""); } } } ); Border delBorder = BorderFactory.createTitledBorder(border, "Delete"); JPanel delPanel = new JPanel(); delPanel.setBorder(delBorder); delPanel.setLayout(new FlowLayout()); delPanel.add(delField); delPanel.add(delBtn); JScrollPane scrollTextArea = new JScrollPane(textArea); Border textBorder=BorderFactory.createTitledBorder(border, "Infomation Board"); scrollTextArea.setBorder(textBorder); JPanel actionPanel = new JPanel(); actionPanel.setLayout(new BorderLayout()); actionPanel.add(srchPanel, BorderLayout.NORTH); actionPanel.add(addPanel, BorderLayout.CENTER); actionPanel.add(delPanel, BorderLayout.SOUTH); add(actionPanel); add(scrollTextArea); srchBtn.addActionListener(new SearchEventHandler(srchField, textArea)); addBtn.addActionListener(new AddEventHandler(nameField, phoneField, majorField, yearField, textArea)); delBtn.addActionListener(new DeleteEventHandler(delField, textArea)); setVisible(true); setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);