PhoneBook Lab 1
Phone Book Lab Video
Assignment Purpose:
The purpose of this assignment is to review constructor methods, overloading, arrays and ArrayLists,
and to learn new substring methods.
Part 1
First, make a new PhoneBook Project in your IDE. You'll need the starter for the Person Class, which you will be improving, and the three "Test" classes that will test how you are doing with the Person Class. For Part 1 complete the methods so all three test Classes work.
Part 2
For Part 2 you need to overload the Constructor methods, so they work according to the the comments. To test Part 2, you need to remove the commented out lines.
Part 3
Part 3 would involve error checking in the set methods and constructor methods.
We may not have time for this, but for an extra credit point, I have Included a InputPersonTest Class that will prompt for names and numbers to test for how your new methods deal with bogus input. Here are some ideas:
- Checks and removes extra "." after the middle initial
- Capitalizes when lowercase is entered
- Checks and removes extra "-" or "()" in phone numbers
- Checks if something other that 7 or 10 digits are entered
Keep this Project on hand. We will be expanding this project later when we learn search and sorting methods.
Person.java
/**
* class Person here.
*
* @author Fr Chris
* @version Jan 13 2008
*/
public class Person
{
// instance variables
private String phone;//no punctuation
private String first;
private String last;
private String mi; //middle initial
/**
* Constructor for objects of class Person
*/
public Person()
{
// initialize instance variables
phone="1234567";
first="John";
last="Doe";
mi="Q";
}
/**
* Constructor that initializes with the Given Name
* @param nm
* Precondition: there is a space between the first name
* and middle initial and another space between the
* middle initial and the last name
*/
// put your code here for Part 2
/**
* Constructor that initializes with the Given Name and number
* @param nm
* Precondition: there is a space between the first name
* and middle initial and another space between the
* middle initial and the last name,
* the number is a String that is either
* 7 or 10 digits
*/
// put your code here for Part 2
/**
* setFirst
*
* @param nm becomes the persons First Name
*
*/
public void setFirst(String nm)
{
// put your code here
}
/**
* setLast
*
* @param nm becomes the persons Last Name
*
*/
public void setLast(String nm)
{
// put your code here
}
/**
* setMI
*
* @param i becomes the persons Middle Inital
*
*/
public void setMI(String i)
{
// put your code here
}
/**
* setPhone
*
* @param nm becomes the persons number
* Precondition: the String must be a String
* with either 7 or 10 digits, and nothing else
* For example "8185551212" (no spaces)
*
*/
public void setPhone(String nm)
{
phone=nm;
}
/**
* getName returns the Complete name
*
* for example "Alice A. Anderson"
* this method adds spaces and the "." after the
* middle initial
*
* @return the Name
*/
public String getName()
{
// put your code here
}
/**
* getPhone returns the Name
*
* @return the Name
*
* Precondition: the string is either 7 or 10 digits
* is it is 7 digits, then the out put is xxx-xxxx
* otherwise is it (xxx) xxx-xxxx
*
*/
public String getPhone()
{
if (phone.length() >6)
// put your code here
else
// put your code here
}
/**
* if you dont overload the default toString method
* it will return a memory address
*
* add code so it will return the Complete name and phone number
* (separated by a tab)
* for example: "Alice A. Anderson 123-4567"
*
*/
public String toString()
{
// put your code here
}
}
PersonTest.java
/**
* PersonTest tests the People Class
* in order to get a Phone Book Class going
*
* @author Fr Chris Thiel
* @version 13 Jan 2008
*/
public class PersonTest
{
public static void main (String [] args)
{
Person p1 = new Person();
p1.setFirst("Alice");
p1.setLast("Anderson");
p1.setMI("A");
Person p2 = new Person();
p2.setFirst("Betty");
p2.setLast("Butters");
p2.setMI("B");
p2.setPhone("8185551234");
System.out.println(p1.getName() );
System.out.println(p1);
System.out.println(p2.getName() );
System.out.println(p2);
//Tests Part 2 (the overloaded constructors)
//Person p3 = new Person("Dorothy D Dolan");
//System.out.println(p3);
//Person p4 = new Person("Edith E Edwards", "2139876543");
//System.out.println(p4);
}
}
PersonArrayTest.java
/**
* PersonTest tests the People Class
* in order to get a Phone Book Class going
*
* @author Fr Chris Thiel
* @version 13 Jan 2008
*/
public class PersonArrayTest
{
public static void main (String [] args)
{
Person [] array = new Person[3];
array[0] = new Person();
array[0].setFirst("Alice");
array[0].setLast("Anderson");
array[0].setMI("A");
array[1] = new Person();
array[1].setFirst("Babette");
array[1].setLast("Barker");
array[1].setMI("B");
array[2] = new Person();
array[2].setFirst("Charline");
array[2].setLast("Chase");
array[2].setMI("C");
//Tests the New Constructors
//array[2]= new Person("Fanny F Flanders", "2131119999");
for (Person entry:array)
System.out.println(entry);
}
}
PersonArrayListTest.java
import java.util.ArrayList;
/**
* PersonTest tests the People Class
* in order to get a Phone Book Class going
*
* @author Fr Chris Thiel
* @version 13 Jan 2008
*/
public class PersonArrayListTest
{
public static void main (String [] args)
{
ArrayList<Person> list = new ArrayList<Person>();
list.add(new Person());
list.get(0).setFirst("Alice");
list.get(0).setLast("Anderson");
list.get(0).setMI("A");
list.add(new Person() );
list.get(1).setFirst("Babette");
list.get(1).setLast("Barker");
list.get(1).setMI("B");
list.add (new Person());
list.get(2).setFirst("Charline");
list.get(2).setLast("Chase");
list.get(2).setMI("C");
//Tests the New Constructors
//list.add(new Person("Ginny G Grapefruit"));
//list.add(new Person("Hilda H Hasthopper", "9871234"));
for (Person entry:list)
System.out.println(entry);
}
}
InputPersonTest.java
import java.util.ArrayList;
import java.util.Scanner;
/**
* InputPersonTest tests the People Class
* in order to get a Phone Book Class going
*
* @author Fr Chris Thiel
* @version 13 Jan 2008
*/
public class InputPersonTest
{
public static void main (String [] args)
{
System.out.println("Input Person Test Started\n(Type an empty line to end)");
Scanner in=new Scanner(System.in);
ArrayList<Person> list = new ArrayList<Person>();
list.add(new Person("Hilda H Hasthopper", "9871234"));
String s=" ";
while (s.length()>0)
{
for (Person entry:list)
System.out.println(entry);
System.out.print("Full Name: ");
s=in.nextLine();
if(s.length() > 0)
{
System.out.print("Number: ");
String n=in.nextLine();
if (n.length()>0)
{
list.add(new Person(s,n) );
}
else
{
list.add(new Person(s));
}
}
}
System.out.println("Input Person Test Ended Normally");
}
}