Question
Package lab2.cscd211methods Class CSCD211Lab2Methods java.lang.Object lab2.cscd211methods.CSCD211Lab2Methods public class CSCD211Lab2Methods extends java.lang.Object The methods class for the Lab Constructor Summary Constructors Constructor Description CSCD211Lab2Methods() Method Summary
Package lab2.cscd211methods
Class CSCD211Lab2Methods
- java.lang.Object
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- lab2.cscd211methods.CSCD211Lab2Methods
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public class CSCD211Lab2Methods extends java.lang.Object
The methods class for the Lab
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Constructor Summary
Constructors Constructor Description CSCD211Lab2Methods()
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Method Summary
All MethodsStatic MethodsConcrete Methods Modifier and Type Method Description static Color convertColor(java.lang.String color) The convertColor method converts a string to a color.
static void displayAll(Color toFind, Person[] myPeeps) The displayAll method displays all Person objects that contain a specific color.
static Person[] fillArray(java.util.Scanner fin, int total) The fillArray method creates an array of type person.
static int menu(java.util.Scanner kb) The menu method.
static void printArray(Person[] myPeeps) The print array method prints the individual person to the screen and then a carriage return between people.
static Color readColor(java.util.Scanner kb) The readColor method reads a string from the keyboard and then converts it to a color by calling the private method convertColor
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Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Constructor Detail
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CSCD211Lab2Methods
public CSCD211Lab2Methods()
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Method Detail
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convertColor
public static Color convertColor(java.lang.String color)
The convertColor method converts a string to a color. This method is called from various other methods.
Parameters:
color - String representing the color
Returns:
Color - The color object obtained from the String. If no color matches then and RuntimeException is thrown. This method must convert the color generically
Throws:
java.lang.IllegalArgumentException - if the String is null
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displayAll
public static void displayAll(Color toFind, Person[] myPeeps)
The displayAll method displays all Person objects that contain a specific color.
Parameters:
toFind - Representing the color to find
myPeeps - Representing the Person array
Throws:
java.lang.IllegalArgumentException - if the array is null
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fillArray
public static Person[] fillArray(java.util.Scanner fin, int total)
The fillArray method creates an array of type person. Reads the information from the file, creates a person and places the person object into the array. The array is returned.
Parameters:
fin - Representing the Scanner object to the file
total - Representing the total items that will be in the array
Returns:
Person [] - An filled array of containing Person objects
Throws:
java.lang.IllegalArgumentException - if the Scanner object is null
java.lang.IllegalArgumentException - if total is less than or equal to 0
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menu
public static int menu(java.util.Scanner kb)
The menu method. Valid menu choices are: 1. Print the Array to the screen 2. Display all people that contain a certain color 3. Sort the array by Color 4. Sort the array by the 'natural order' 5. Quit You must ensure the value entered is within range You must ensure the input buffer is left empty
Parameters:
kb - Representing the Scanner object to the keyboard
Returns:
int - Representing the menu choice
Throws:
java.lang.IllegalArgumentException - if the Scanner object is null
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printArray
public static void printArray(Person[] myPeeps)
The print array method prints the individual person to the screen and then a carriage return between people.
Parameters:
myPeeps - Representing the filled array of type Person
Throws:
java.lang.IllegalArgumentException - if the array is null
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readColor
public static Color readColor(java.util.Scanner kb)
The readColor method reads a string from the keyboard and then converts it to a color by calling the private method convertColor
Parameters:
kb - Representing the Scanner object
Returns:
Color - Representing the Color enumerated type
Throws:
java.lang.IllegalArgumentException - if the Scanner object is null
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Package lab2.cscd211enums
Enum Color
- java.lang.Object
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- java.lang.Enum
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- lab2.cscd211enums.Color
- java.lang.Enum
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All Implemented Interfaces:
java.io.Serializable, java.lang.Comparable
public enum Color extends java.lang.Enum
The enumerated type Color.
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Enum Constant Summary
Enum Constants Enum Constant Description BLUE GREEN PURPLE RED
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Constructor Summary
Constructors Modifier Constructor Description private Color()
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Method Summary
All MethodsStatic MethodsConcrete Methods Modifier and Type Method Description static Color valueOf(java.lang.String name) Returns the enum constant of this type with the specified name.
static Color[] values() Returns an array containing the constants of this enum type, in the order they are declared.
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Methods inherited from class java.lang.Enum
clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf
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Methods inherited from class java.lang.Object
getClass, notify, notifyAll, wait, wait, wait
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Enum Constant Detail
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RED
public static final Color RED
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GREEN
public static final Color GREEN
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BLUE
public static final Color BLUE
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PURPLE
public static final Color PURPLE
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Constructor Detail
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Color
private Color()
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Method Detail
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values
public static Color[] values()
Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:for (Color c : Color.values()) System.out.println(c);
Returns:
an array containing the constants of this enum type, in the order they are declared
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valueOf
public static Color valueOf(java.lang.String name)
Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)
Parameters:
name - the name of the enum constant to be returned.
Returns:
the enum constant with the specified name
Throws:
java.lang.IllegalArgumentException - if this enum type has no constant with the specified name
java.lang.NullPointerException - if the argument is null
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Package lab2.cscd211comparators
Class ColorComparator
- java.lang.Object
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- lab2.cscd211comparators.ColorComparator
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All Implemented Interfaces:
java.util.Comparator
public class ColorComparator extends java.lang.Object implements java.util.Comparator
The ColorComparator lab implements a Comparator and ensures the parameterized type Person is used for the Comparator.
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Constructor Summary
Constructors Constructor Description ColorComparator()
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Method Summary
All MethodsInstance MethodsConcrete Methods Modifier and Type Method Description int compare(Person p1, Person p2) The compare method that compares two persons by the Color reference contents.
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Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface java.util.Comparator
equals, reversed, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong
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Constructor Detail
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ColorComparator
public ColorComparator()
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Method Detail
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compare
public int compare(Person p1, Person p2)
The compare method that compares two persons by the Color reference contents.
Specified by:
compare in interface java.util.Comparator
Parameters:
p1 - The first Person to be compared
p2 - The second Person to be compared
Returns:
int - A negative integer, zero, or a positive integer as the first argument is less than, equal to, or greater than the second
Throws:
java.lang.IllegalArgumentException - if either Person 1 or Person are null
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Package lab2.cscd211classes
Class Person
- java.lang.Object
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- lab2.cscd211classes.Person
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All Implemented Interfaces:
java.lang.Comparable
public class Person extends java.lang.Object implements java.lang.Comparable
The person class. A person contains a first name, last name both Strings, and a Color reference to the enumerated type Color.
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Field Summary
Fields Modifier and Type Field Description private Color color The persons favorite color
private java.lang.String fn The persons first name
private java.lang.String ln The persons last name
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Constructor Summary
Constructors Constructor Description Person(java.lang.String fn, java.lang.String ln, Color color) Explicit Value Constructor for Person
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Method Summary
All MethodsInstance MethodsConcrete Methods Modifier and Type Method Description int compareTo(Person another) compares by last name, if the last names are the same then by first name.
Color getColor() The getColor method
java.lang.String toString() Prints the first name space last name, color
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Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
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Field Detail
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fn
private java.lang.String fn
The persons first name
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ln
private java.lang.String ln
The persons last name
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color
private Color color
The persons favorite color
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Constructor Detail
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Person
public Person(java.lang.String fn, java.lang.String ln, Color color)
Explicit Value Constructor for Person
Parameters:
fn - The first name
ln - The last name
color - The color reference
Throws:
java.lang.IllegalArgumentException - if any of the parameters are null
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Method Detail
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compareTo
public int compareTo(Person another)
compares by last name, if the last names are the same then by first name. If the first names are then same then by color
Specified by:
compareTo in interface java.lang.Comparable
Throws:
java.lang.IllegalArgumentException - if another is null
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getColor
public Color getColor()
The getColor method
Returns:
Color - Returns the reference to the enumerated type Color.
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toString
public java.lang.String toString()
Prints the first name space last name, color
Overrides:
toString in class java.lang.Object
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I need help creating this program asap!!! There is a jar file that was imported but isn't necessary for any of these file. Thank you!!!!
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