myhw3.data

Class VideoObj

java.lang.Object

myhw3.data.VideoObj

All Implemented Interfaces:

java.lang.Comparable<Video>, Video

final class VideoObj
extends java.lang.Object
implements Video

Implementation of Video interface.

See Also:

Data

Field Summary

Fields

Modifier and Type	Field and Description
private java.lang.String	director
private java.lang.String	title
private int	year

Constructor Summary

Constructors

Constructor and Description
VideoObj(java.lang.String title, int year, java.lang.String director) Initialize all object attributes.

Method Summary

Modifier and Type	Method and Description
int	compareTo(Video that) Compares the attributes of this object with those of thatObject, in the following order: title, year, director.
java.lang.String	director() Return the value of the attribute.
boolean	equals(java.lang.Object thatObject) Compare the attributes of this object with those of thatObject.
int	hashCode() Return a hash code value for this object using the algorithm from Bloch: fields are added in the following order: title, year, director.
java.lang.String	title() Return the value of the attribute.
java.lang.String	toString() Return a string representation of the object in the following format: "title (year) : director".
int	year() Return the value of the attribute.

Methods inherited from class java.lang.Object

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

Field Detail

title

private final java.lang.String title

year

private final int year

director

private final java.lang.String director

Constructor Detail

VideoObj

VideoObj(java.lang.String title,
         int year,
         java.lang.String director)

Initialize all object attributes. Title and director are "trimmed" to remove leading and final space.

Throws:

java.lang.IllegalArgumentException - if object invariant violated.

Method Detail

director

public java.lang.String director()

Description copied from interface: Video

Return the value of the attribute.

Specified by:

director in interface Video

title

public java.lang.String title()

Description copied from interface: Video

Return the value of the attribute.

Specified by:

title in interface Video

year

public int year()

Description copied from interface: Video

Return the value of the attribute.

Specified by:

year in interface Video

equals

public boolean equals(java.lang.Object thatObject)

Description copied from interface: Video

Compare the attributes of this object with those of thatObject.

Specified by:

equals in interface Video

Overrides:

equals in class java.lang.Object

Parameters:

thatObject - the Object to be compared.

Returns:

true if this object is the same as the obj argument; false otherwise.

hashCode

public int hashCode()

Description copied from interface: Video

Return a hash code value for this object using the algorithm from Bloch: fields are added in the following order: title, year, director.

Specified by:

hashCode in interface Video

Overrides:

hashCode in class java.lang.Object

compareTo

public int compareTo(Video that)

Description copied from interface: Video

Compares the attributes of this object with those of thatObject, in the following order: title, year, director.

Specified by:

compareTo in interface java.lang.Comparable<Video>

Specified by:

compareTo in interface Video

Parameters:

that - the Video to be compared.

Returns:

a negative integer, zero, or a positive integer as this object is less than, equal to, or greater than that object.

toString

public java.lang.String toString()

Description copied from interface: Video

Return a string representation of the object in the following format: "title (year) : director".

Specified by:

toString in interface Video

Overrides:

toString in class java.lang.Object