Class Person

java.lang.Object

Person

All Implemented Interfaces:

java.lang.Comparable<Person>

public class Person
extends java.lang.Object
implements java.lang.Comparable<Person>

The class encapsulates a contact person in an address book.

Constructor Summary

Constructors

Constructor and Description
Person(java.lang.String name, int age, java.lang.String contactInfo) Initializes this Person object with the passed name, age, and contact.

Method Summary

Methods

Modifier and Type	Method and Description
int	compareTo(Person other) Compares this object with the passed one.
boolean	equals(java.lang.Object obj) Tests equality between this object and the passed one.
int	getAge() Returns this person's age.
java.lang.String	getContactInfo() Returns this person's contact information.
java.lang.String	getName() Returns this person's name.
void	setAge(int age) Sets this person's age.
void	setContactInfo(java.lang.String contactInfo) Sets the person's contact info.
void	setName(java.lang.String name) Sets this person's name.
java.lang.String	toString() Returns a String representation of this object, comprised of the name, age, and contact information, as in the following example: Jane Doe, age: 32, contact: 321-555-1234

Methods inherited from class java.lang.Object

clone, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

Person

public Person(java.lang.String name,
      int age,
      java.lang.String contactInfo)
       throws java.lang.IllegalArgumentException

Initializes this Person object with the passed name, age, and contact.

Parameters:

name - the name for this Person

age - the age for this Person

contactInfo - the contact information for this person

Throws:

java.lang.IllegalArgumentException - if age < 0

Method Detail

getName

public java.lang.String getName()

Returns this person's name.

Returns:

the name

setName

public void setName(java.lang.String name)

Sets this person's name.

Parameters:

name - the name to set

getAge

public int getAge()

Returns this person's age.

Returns:

the age

setAge

public void setAge(int age)
            throws java.lang.IllegalArgumentException

Sets this person's age.

Parameters:

age - the age to set

Throws:

java.lang.IllegalArgumentException - if age < 0

getContactInfo

public java.lang.String getContactInfo()

Returns this person's contact information.

Returns:

the contactInfo

setContactInfo

public void setContactInfo(java.lang.String contactInfo)

Sets the person's contact info. This String could represent an email address or a phone number, etc.

Parameters:

contactInfo - the contactInfo to set

toString

public java.lang.String toString()

Returns a String representation of this object, comprised of the name, age, and contact information, as in the following example: Jane Doe, age: 32, contact: 321-555-1234

Overrides:

toString in class java.lang.Object

Returns:

a String representation of this Person

See Also:

Object.toString()

equals

public boolean equals(java.lang.Object obj)

Tests equality between this object and the passed one.

Overrides:

equals in class java.lang.Object

Parameters:

obj - the object to test for equality

Returns:

true if the two objects are equal, false otherwise

See Also:

Object.equals(java.lang.Object)

compareTo

public int compareTo(Person other)

Compares this object with the passed one. Returns a negative int, zero, or a positive int if this object comes before, is the same as, or comes after the other object in natural ordering. The natural ordering for the first name, age, and contact information are used (in that order).

Specified by:

compareTo in interface java.lang.Comparable<Person>

Parameters:

other - the other Person object to compare

Returns:

a negative int, zero, or a positive int if this object comes before, is the same as, or comes after the other object in natural ordering

See Also:

Comparable.compareTo(java.lang.Object)