Address book of friends: Write a program that functions as an address book. It s

Question

Address book of friends: Write a program that functions as an address book. It should have entries containing at least the following information: first and last name, phone number, date of birth, address, and email address. You should be able to add entries and remove entries, as well as printing out any given entry. It should save entries to a file, and be able to read in entries from a file as well. The address book must be able to sort by at least one field (preferably last name). You may use any sort for this that you like. The address book will almost certainly contain a fixed limit on the total number of entries. However, it should be possible to increase this limit by simply changing a single line in your program and then recompiling with no other modifications. An excellent program will be able to sort the entries by any field (first name, last name, DOB, phone number, email address, etc). An excellent program will be able to display only entries matching a certain criteria (only last names beginning with the letter 'M', for example). An excellent program easily and intelligently handles the use of multiple address books (multiple files). A spectacular program features the ability to move an entry from one address book to another. 1) Load from file 2) Save to file 3) Add an entry 4) Remove an entry 5) Edit an existing entry 6) Sort the address book 7) Search for a specific entry 8) Quit Please choose what you'd like to do with the database: Just a recommendation: use a variable to keep track of the number of elements currently in the address book. This value will increase when you add new entries and decrease when you remove entries. This is the variable you will use in all your for loops for iterating through the array of records. Once this variable reaches the capacity of the array (arr.length), the address book is "full" and no new entries can be added. Bonus: when loading a file containing an address book, the program automatically checks if there is a friend's birthday within 3 days and prints on the screen all the close birthdays (birthdays that are today, then the ones that are tomorrow and lastly the ones that are the day after tomorrow). Bonus 2: Use encryption and passwords for the address book files in the following way: XOR has a property very useful in encryption: A XOR B=C; C XOR B=A, thus A is your unencrypted file, B is your password and C is the encrypted file. You will pick a password, say "computing" and you should perform XOR between each ASCII code of the password with each byte of the file: first character of the password with first byte of the file, second character in pwd with second character in file, etc. At the end of the PWD you go to the begining character of the password. Incidentally this is the same way WinZip is password protecting the ZIP files. DUE DATE April 18, 2016 at midnight

Explanation / Answer

*/ import java.awt.Container; import java.awt.GridBagConstraints; import java.awt.GridBagLayout; import java.awt.Insets; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.util.ArrayList; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JOptionPane; import javax.swing.JTextField; public class AddressBookDemo implements ActionListener { ArrayList personsList; PersonDAO pDAO; JFrame appFrame; JLabel jlbName, jlbAddress, jlbPhone, jlbEmail; JTextField jtfName, jtfAddress, jtfPhone, jtfEmail; JButton jbbSave, jbnDelete, jbnClear, jbnUpdate, jbnSearch, jbnForward, jbnBack, jbnExit; String name, address, email; int phone; int recordNumber; // used to naviagate using >> and buttons Container cPane; public static void main(String args[]) { new AddressBookDemo(); } public AddressBookDemo() { name = ""; address = ""; email = ""; phone = -1; //Stores 0 to indicate no Phone Number recordNumber = -1; createGUI(); personsList = new ArrayList(); // creating PersonDAO object pDAO = new PersonDAO(); } public void createGUI(){ /*Create a frame, get its contentpane and set layout*/ appFrame = new JFrame("Address Book"); cPane = appFrame.getContentPane(); cPane.setLayout(new GridBagLayout()); //Arrange components on contentPane and set Action Listeners to each JButton arrangeComponents(); appFrame.setSize(240,300); appFrame.setResizable(false); appFrame.setVisible(true); } public void arrangeComponents() { jlbName = new JLabel("Name"); jlbAddress = new JLabel("Address"); jlbPhone = new JLabel("Phone"); jlbEmail = new JLabel("Email"); jtfName = new JTextField(20); jtfAddress = new JTextField(20); jtfPhone = new JTextField(20); jtfEmail = new JTextField(20); jbbSave = new JButton("Save"); jbnDelete = new JButton("Delete"); jbnClear = new JButton("Clear"); jbnUpdate = new JButton("Update"); jbnSearch = new JButton("Search"); jbnForward = new JButton(">>"); jbnBack = new JButton(""); jbnExit = new JButton("Exit"); /*add all initialized components to the container*/ GridBagConstraints gridBagConstraintsx01 = new GridBagConstraints(); gridBagConstraintsx01.gridx = 0; gridBagConstraintsx01.gridy = 0; gridBagConstraintsx01.insets = new Insets(5, 5, 5, 5); cPane.add(jlbName, gridBagConstraintsx01); GridBagConstraints gridBagConstraintsx02 = new GridBagConstraints(); gridBagConstraintsx02.gridx = 1; gridBagConstraintsx02.insets = new Insets(5, 5, 5, 5); gridBagConstraintsx02.gridy = 0; gridBagConstraintsx02.gridwidth = 2; gridBagConstraintsx02.fill = GridBagConstraints.BOTH; cPane.add(jtfName, gridBagConstraintsx02); GridBagConstraints gridBagConstraintsx03 = new GridBagConstraints(); gridBagConstraintsx03.gridx = 0; gridBagConstraintsx03.insets = new Insets(5, 5, 5, 5); gridBagConstraintsx03.gridy = 1; cPane.add(jlbAddress, gridBagConstraintsx03); GridBagConstraints gridBagConstraintsx04 = new GridBagConstraints(); gridBagConstraintsx04.gridx = 1; gridBagConstraintsx04.insets = new Insets(5, 5, 5, 5); gridBagConstraintsx04.gridy = 1; gridBagConstraintsx04.gridwidth = 2; gridBagConstraintsx04.fill = GridBagConstraints.BOTH; cPane.add(jtfAddress, gridBagConstraintsx04); GridBagConstraints gridBagConstraintsx05 = new GridBagConstraints(); gridBagConstraintsx05.gridx = 0; gridBagConstraintsx05.insets = new Insets(5, 5, 5, 5); gridBagConstraintsx05.gridy = 2; cPane.add(jlbPhone, gridBagConstraintsx05); GridBagConstraints gridBagConstraintsx06 = new GridBagConstraints(); gridBagConstraintsx06.gridx = 1; gridBagConstraintsx06.gridy = 2; gridBagConstraintsx06.insets = new Insets(5, 5, 5, 5); gridBagConstraintsx06.gridwidth = 2; gridBagConstraintsx06.fill = GridBagConstraints.BOTH; cPane.add(jtfPhone, gridBagConstraintsx06); GridBagConstraints gridBagConstraintsx07 = new GridBagConstraints(); gridBagConstraintsx07.gridx = 0; gridBagConstraintsx07.insets = new Insets(5, 5, 5, 5); gridBagConstraintsx07.gridy = 3; cPane.add(jlbEmail, gridBagConstraintsx07); GridBagConstraints gridBagConstraintsx08 = new GridBagConstraints(); gridBagConstraintsx08.gridx = 1; gridBagConstraintsx08.gridy = 3; gridBagConstraintsx08.gridwidth = 2; gridBagConstraintsx08.insets = new Insets(5, 5, 5, 5); gridBagConstraintsx08.fill = GridBagConstraints.BOTH; cPane.add(jtfEmail, gridBagConstraintsx08); GridBagConstraints gridBagConstraintsx09 = new GridBagConstraints(); gridBagConstraintsx09.gridx = 0; gridBagConstraintsx09.gridy = 4; gridBagConstraintsx09.insets = new Insets(5, 5, 5, 5); cPane.add(jbbSave, gridBagConstraintsx09); GridBagConstraints gridBagConstraintsx10 = new GridBagConstraints(); gridBagConstraintsx10.gridx = 1; gridBagConstraintsx10.gridy = 4; gridBagConstraintsx10.insets = new Insets(5, 5, 5, 5); cPane.add(jbnDelete, gridBagConstraintsx10); GridBagConstraints gridBagConstraintsx11 = new GridBagConstraints(); gridBagConstraintsx11.gridx = 2; gridBagConstraintsx11.gridy = 4; gridBagConstraintsx11.insets = new Insets(5, 5, 5, 5); cPane.add(jbnUpdate, gridBagConstraintsx11); GridBagConstraints gridBagConstraintsx12 = new GridBagConstraints(); gridBagConstraintsx12.gridx = 0; gridBagConstraintsx12.gridy = 5; gridBagConstraintsx12.insets = new Insets(5, 5, 5, 5); cPane.add(jbnBack, gridBagConstraintsx12); GridBagConstraints gridBagConstraintsx13 = new GridBagConstraints(); gridBagConstraintsx13.gridx = 1; gridBagConstraintsx13.gridy = 5; gridBagConstraintsx13.insets = new Insets(5, 5, 5, 5); cPane.add(jbnSearch, gridBagConstraintsx13); GridBagConstraints gridBagConstraintsx14 = new GridBagConstraints(); gridBagConstraintsx14.gridx = 2; gridBagConstraintsx14.gridy = 5; gridBagConstraintsx14.insets = new Insets(5, 5, 5, 5); cPane.add(jbnForward, gridBagConstraintsx14); GridBagConstraints gridBagConstraintsx15 = new GridBagConstraints(); gridBagConstraintsx15.gridx = 1; gridBagConstraintsx15.insets = new Insets(5, 5, 5, 5); gridBagConstraintsx15.gridy = 6; cPane.add(jbnClear, gridBagConstraintsx15); GridBagConstraints gridBagConstraintsx16 = new GridBagConstraints(); gridBagConstraintsx16.gridx = 2; gridBagConstraintsx16.gridy = 6; gridBagConstraintsx16.insets = new Insets(5, 5, 5, 5); cPane.add(jbnExit, gridBagConstraintsx16); jbbSave.addActionListener(this); jbnDelete.addActionListener(this); jbnClear.addActionListener(this); jbnUpdate.addActionListener(this); jbnSearch.addActionListener(this); jbnForward.addActionListener(this); jbnBack.addActionListener(this); jbnExit.addActionListener(this); } public void actionPerformed(ActionEvent e) { if (e.getSource() == jbbSave) { savePerson(); clear(); } else if (e.getSource() == jbnDelete) { deletePerson(); clear(); } else if (e.getSource() == jbnUpdate) { updatePerson(); clear(); } else if (e.getSource() == jbnSearch) { searchPerson(); } else if (e.getSource() == jbnForward) { displayNextRecord(); } else if (e.getSource() == jbnBack) { displayPreviousRecord(); } else if (e.getSource() == jbnClear) { clear(); } else if (e.getSource() == jbnExit) { System.exit(0); } } // Save the Person into the Address Book public void savePerson() { name = jtfName.getText(); name = name.toUpperCase(); //Save all names in Uppercase address = jtfAddress.getText(); try { phone = Integer.parseInt("" + jtfPhone.getText()); } catch (Exception e) { /*System.out.print("Input is a string"); JOptionPane.showMessageDialog(null, "Please enter Phone Number");*/ } email = jtfEmail.getText(); if (name.equals("")) { JOptionPane.showMessageDialog(null, "Please enter person name."); } else { //create a PersonInfo object and pass it to PersonDAO to save it PersonInfo person = new PersonInfo(name, address, phone, email); pDAO.savePerson(person); JOptionPane.showMessageDialog(null, "Person Saved"); } } public void deletePerson() { name = jtfName.getText(); name = name.toUpperCase(); if (name.equals("")) { JOptionPane.showMessageDialog(null, "Please enter person name to delete."); } else { //remove Person of the given name from the Address Book database int numberOfDeleted = pDAO.removePerson(name); JOptionPane.showMessageDialog(null, numberOfDeleted + " Record(s) deleted."); } } public void updatePerson() { if (recordNumber >= 0 && recordNumber < personsList.size()) { PersonInfo person = (PersonInfo) personsList.get(recordNumber); int id = person.getId(); /*get values from text fields*/ name = jtfName.getText(); address = jtfAddress.getText(); phone = Integer.parseInt(jtfPhone.getText()); email = jtfEmail.getText(); /*update data of the given person name*/ person = new PersonInfo(id, name, address, phone, email); pDAO.updatePerson(person); JOptionPane.showMessageDialog(null, "Person info record updated successfully."); } else { JOptionPane.showMessageDialog(null, "No record to Update"); } } //Perform a Case-Insensitive Search to find the Person public void searchPerson() { name = jtfName.getText(); name = name.toUpperCase(); /*clear contents of arraylist if there are any from previous search*/ personsList.clear(); recordNumber = 0; if (name.equals("")) { JOptionPane.showMessageDialog(null, "Please enter person name to search."); } else { /*get an array list of searched persons using PersonDAO*/ personsList = pDAO.searchPerson(name); if (personsList.size() == 0) { JOptionPane.showMessageDialog(null, "No records found."); //Perform a clear if no records are found. clear(); } else { /*downcast the object from array list to PersonInfo*/ PersonInfo person = (PersonInfo) personsList .get(recordNumber); // displaying search record in text fields jtfName.setText(person.getName()); jtfAddress.setText(person.getAddress()); jtfPhone.setText("" + person.getPhone()); jtfEmail.setText(person.getEmail()); } } } public void displayNextRecord() { // inc in recordNumber to display next person info, already stored in // personsList during search recordNumber++; if (recordNumber >= personsList.size()) { JOptionPane.showMessageDialog(null, "You have reached end of " + "search results"); /*if user has reached the end of results, disable forward button*/ jbnForward.setEnabled(false); jbnBack.setEnabled(true); // dec by one to counter last inc recordNumber--; } else { jbnBack.setEnabled(true); PersonInfo person = (PersonInfo) personsList.get(recordNumber); // displaying search record in text fields jtfName.setText(person.getName()); jtfAddress.setText(person.getAddress()); jtfPhone.setText("" + person.getPhone()); jtfEmail.setText(person.getEmail()); } } public void displayPreviousRecord() { // dec in recordNumber to display previous person info, already //stored in personsList during search recordNumber--; if (recordNumber < 0) { JOptionPane.showMessageDialog(null, "You have reached begining " + "of search results"); /*if user has reached the begining of results, disable back button*/ jbnForward.setEnabled(true); jbnBack.setEnabled(false); // inc by one to counter last dec recordNumber++; } else { jbnForward.setEnabled(true); PersonInfo person = (PersonInfo) personsList.get(recordNumber); // displaying search record in text fields jtfName.setText(person.getName()); jtfAddress.setText(person.getAddress()); jtfPhone.setText("" + person.getPhone()); jtfEmail.setText(person.getEmail()); } } public void clear() { jtfName.setText(""); jtfAddress.setText(""); jtfPhone.setText(""); jtfEmail.setText(""); /*clear contents of arraylist*/ recordNumber = -1; personsList.clear(); jbnForward.setEnabled(true); jbnBack.setEnabled(true); } } import java.util.*; import java.sql.*; public class PersonDAO { /* Person Table needs to be created in the Oracle Database. * create table Person ( id Integer, name Varchar(30), address Varchar(30), phone Integer, email Varchar(50) );*/ private ArrayList personsList; private String userid = "scott"; private String password = "tiger"; static String url = "jdbc:odbc:bob"; private Connection con; // constructor public PersonDAO() { personsList = new ArrayList(); getConnection(); //Create Connection to the Oracle Database } public Connection getConnection() { try { Class.forName("sun.jdbc.odbc.JdbcOdbcDriver"); } catch (java.lang.ClassNotFoundException e) { System.err.print("ClassNotFoundException: "); System.err.println(e.getMessage()); } try { con = DriverManager.getConnection(url, userid, password); } catch (SQLException ex) { System.err.println("SQLException: " + ex.getMessage()); } return con; } public ArrayList searchPerson(String name) { try { String sql = "SELECT * FROM Person WHERE name like '%" + name + "%'"; // Create a prepared statement Statement s = con.createStatement(); ResultSet rs = s.executeQuery(sql); String pname = ""; String address = ""; String email = ""; int id, phone; while (rs.next()) { id = rs.getInt("id"); pname = rs.getString("name"); address = rs.getString("address"); phone = rs.getInt("phone"); email = rs.getString("email"); //Create a PersonInfo object PersonInfo person = new PersonInfo(id, pname, address, phone, email); //Add the person object to array list personsList.add(person); } } catch (Exception e) { System.out.println(e); } return personsList; } public void savePerson(PersonInfo person) { try { String sql = "INSERT INTO Person(name, address, " + "phone, email) VALUES (?,?,?,?) "; // Create a Preparedstatement PreparedStatement ps = con.prepareStatement(sql); ps.setString(1, person.getName()); ps.setString(2, person.getAddress()); ps.setInt(3, person.getPhone()); ps.setString(4, person.getEmail()); ps.executeUpdate(); } catch (Exception e) { System.out.println(e); } } public void updatePerson(PersonInfo person) { try { String sql = "UPDATE Person SET name = ?, address=? , " + "phone=? , email=? where id=?"; // Create a Prepared statement PreparedStatement ps = con.prepareStatement(sql); ps.setString(1, person.getName()); ps.setString(2, person.getAddress()); ps.setInt(3, person.getPhone()); ps.setString(4, person.getEmail()); ps.setInt(5, person.getId()); ps.executeUpdate(); } catch (Exception e) { System.out.println(e); } } public int removePerson(String name) { int no = 0; try { String sql = "DELETE FROM Person WHERE name = ?"; // Create a Prepared statement PreparedStatement ps = con.prepareStatement(sql); ps.setString(1, name); no = ps.executeUpdate(); } catch (Exception e) { System.out.println(e); } return no; } }// end class PersonDAO

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.