The provided codetrack_file_handling.rb class Track att.pdf
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The provided code: *track_file_handling.rb class Track attr_accessor :name, :location def initialize (name, location) @name = name @location = location end end # Returns an array of tracks read from the given file def read_tracks(music_file) count = music_file.gets().to_i() tracks = Array.new() # Put a while loop here which increments an index to read the tracks track = read_track(music_file) tracks << track return tracks end # reads in a single track from the given file. def read_track(a_file) # complete this function # you need to create a Track here. end # Takes an array of tracks and prints them to the terminal def print_tracks(tracks) # Use a while loop with a control variable index # to print each track. Use tracks.length to determine how # many times to loop. # Print each track use: tracks[index] to get each track record end # Takes a single track and prints it to the terminal def print_track(track) puts(track.name) puts(track.location) end # Open the file and read in the tracks then print them def main() a_file = File.new("input.txt", "r") # open for reading # Print all the tracks print_tracks(tracks) end main() *input.txt 3 Crackling Rose sounds/01-Cracklin-rose.wav Soolaimon sounds/06-Soolaimon.wav Sweet Caroline sounds/20-Sweet_Caroline.wav Can anyone pls help me with this Ruby task, it's urgent. Thx! Use the code provided to get started. You must enhance the code provided as follows: - Complete the provided code so that it reads in an array of tracks then prints them out. The program output (using the file input.txt) should look as follows: MacBook-Pro-6:TuteTasks mmitchel1s ruby music_tracks_only.rb Crackling Rose sounds/01-Cracklin-rose.wav Soolaimon sounds/06-Soolaimon.wav Sweet Caroline sounds/20-Sweet_Caroline.wav MacBook-Pro-6:TuteTasks mmitchel1s Once your program is running upload a screenshot to the workspace. Below is a structure chart for this task:.
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![The provided code:
*track_file_handling.rb
class Track
attr_accessor :name, :location
def initialize (name, location)
@name = name
@location = location
end
end
# Returns an array of tracks read from the given file
def read_tracks(music_file)
count = music_file.gets().to_i()
tracks = Array.new()
# Put a while loop here which increments an index to read the tracks
track = read_track(music_file)
tracks << track
return tracks
end
# reads in a single track from the given file.
def read_track(a_file)
# complete this function
# you need to create a Track here.
end
# Takes an array of tracks and prints them to the terminal
def print_tracks(tracks)
# Use a while loop with a control variable index
# to print each track. Use tracks.length to determine how
# many times to loop.
# Print each track use: tracks[index] to get each track record
end
# Takes a single track and prints it to the terminal
def print_track(track)
puts(track.name)](https://image.slidesharecdn.com/theprovidedcodetrackfilehandling-231005220859-f62aa0a4/85/The-provided-codetrack_file_handling-rb-class-Track-att-pdf-1-320.jpg)
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interface and the getters and setter. Can someone help with the methods?
Song Class
public class Song
private String artist // the artist performing the song
private String title // the title of the song
private int minutes // number of min in length
private int seconds // number of seconds of length of the song (always less than 60)
// Add Getters / Setters for all fields
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public Song(String artist, String title)
public Song(String artist, String title, int minutes, int seconds)
public Song(Song s)
public boolean equals(Object o) // a song is equal if all four fields are equal
public String toString() { // Use this code for toString EXACTLY
return \"{Song: title = \" + title + \" artist = \" + artist + \"}\";
}
public void play() { // Use this code for play EXACTLY
System.out.printf(\"Playing Song: artist = %-20s title = %s\ \", artist, title);
}
Make the Song class implement the interface Comparable, and make the ordering criteria as
follows: Songs will be ordered by artist in ascending order. If the artists are the same, then by
title in ascending order. If both artist and title are the same, then any order is acceptable.
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PlayList Class
public class PlayList
Methods that modify the list should return a boolean return true if they successfully change the
list, otherwise they return false. Note that a PlayList can contain other PlayLists!
Methods that return a Playable element return null if they fail to find the song in question.
private String name // contains the name of the playlist
private ArrayList playableList // ArrayList of Playable elements that make up the play list
// Add Getters / Setters for name and songList
// Add a toString() method that returns the name of the playlist followed by its contents (by
calling toString() on each item it contains). You should only have one name/title per line
// Two constructors (remember to initialize ALL fields in each of the constructors - regardless of
the number of parameters!)
public PlayList() // empty play list named \"Untitled\"
public PlayList(String newName) // empty play list
public boolean loadSongs(String fileName) // loads songs from file, more on this below
public boolean clear() // removes all playable elements in the play list
public boolean addSong(Song s) // adds Song s to the end of the play list
public Playable removePlayable(int index) // removes Playable element at index from the list and
returns it
public Playable removePlayable(Playable p) // removes every occurrence of Playable p from the
list and returns p
public Playable getPlayable(int index) // returns the Playable element at the appropriate index
public boolean addPlayList(PlayList pl) //adds the PlayList that is being pa.
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This assignment has four parts:
1- Write a class(new type) to define the Song type.
2- Implement the Doubly Circular Linked List, which will operate with Song type.
3- Implement the Music Player
4- Test it in the main function All Constructors should use the initializer list. 1. Song class
1- class song
#include <iostream>
using namespace std;
class Song{
private:
string songTitle;
string singerName;
public:
Song();
Song(string, string);
virtual ~Song();
string getSongTitle();
string getSingerName();
void setSongTitle(string);
void setSingerName(string);
friend ostream& operator<<(ostream& os, Song& p){
os << ": "<<"{"<<p.songTitle<<" : "<<p.singerName<<"}";
return os;
}
};
2- CNode class
#include <iostream>
#include "Song.h"
using namespace std;
class CNode{
private:
Song elem;
CNode *next;
CNode *prev;
friend class CircleDLinkedList;
};
3- CircleDLinkedList class
#include <iostream>
#include "CNode.h"
using namespace std;
class CircleDLinkedList{
private:
CNode* cursor;
int size;
public:
CircleDLinkedList();
~CircleDLinkedList();
bool empty();
void advance();
void add(Song &s);
void remove();
void print();
int getSize() const;
};
4- MusicPlayer class
#include <iostream>
#include "CircleDLinkedList.h"
using namespace std;
class MusicPlayer{
private:
string type; //will hold the type of the music player
int size; //the current number of the songs
CircleDLinkedList playerList; // list of the songs, CircleDLinkedList is the Doubly Circular Linked
List
public:
MusicPlayer(string);
virtual ~MusicPlayer();
void play(); //plays the current song, meaning that this method will print the properties of the Song
void next(); //moves to the net song and plays it
void previous(); ////moves to the previous song and plays it
void add (Song); //adds a song before the current song
void remove(); //removes the current song
void print(bool);//prints all songs that are in the list, starting from current to left is bool param is true
};
5- Test it in the main function
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Play the next song.
Play the next song.
Play the previous song.
Print the list of the songs using bool parameter true.
Print the list of the songs using bool parameter false.
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Both the Song and PlayList classes will implement this interface.
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private String artist // the artist performing the song
private String title // the title of the song
private int minutes // number of min in length
private int seconds // number of seconds of length of the song (always less than 60)
// Add Getters / Setters for all fields
// Three constructors (remember to initialize ALL fields in each of the constructors - regardless
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public Song(String artist, String title)
public Song(String artist, String title, int minutes, int seconds)
public Song(Song s)
public boolean equals(Object o) // a song is equal if all four fields are equal
public String toString() { // Use this code for toString EXACTLY
return \"{Song: title = \" + title + \" artist = \" + artist + \"}\";
}
public void play() { // Use this code for play EXACTLY
System.out.printf(\"Playing Song: artist = %-20s title = %s\ \", artist, title);
}
Make the Song class implement the interface Comparable, and make the ordering criteria as
follows: Songs will be ordered by artist in ascending order. If the artists are the same, then by
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Don’t forget to include any methods needed to implement the Playable interface.
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public class PlayList
Methods that modify the list should return a boolean return true if they successfully change the
list, otherwise they return false. Note that a PlayList can contain other PlayLists!
Methods that return a Playable element return null if they fail to find the song in question.
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public PlayList() // empty play list named \"Untitled\"
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public boolean loadSongs(String fil.
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claims concerning LER products. Their defence is that they never sold any of the products. They
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public class Song
private String artist // the artist performing the song
private String title // the title of the song
private int minutes // number of min in length
private int seconds // number of seconds of length of the song (always less than 60)
// Add Getters / Setters for all fields
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Methods that modify the list should return a boolean return true if they successfully change the
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1- class song
#include <iostream>
using namespace std;
class Song{
private:
string songTitle;
string singerName;
public:
Song();
Song(string, string);
virtual ~Song();
string getSongTitle();
string getSingerName();
void setSongTitle(string);
void setSingerName(string);
friend ostream& operator<<(ostream& os, Song& p){
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return os;
}
};
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#include <iostream>
#include "Song.h"
using namespace std;
class CNode{
private:
Song elem;
CNode *next;
CNode *prev;
friend class CircleDLinkedList;
};
3- CircleDLinkedList class
#include <iostream>
#include "CNode.h"
using namespace std;
class CircleDLinkedList{
private:
CNode* cursor;
int size;
public:
CircleDLinkedList();
~CircleDLinkedList();
bool empty();
void advance();
void add(Song &s);
void remove();
void print();
int getSize() const;
};
4- MusicPlayer class
#include <iostream>
#include "CircleDLinkedList.h"
using namespace std;
class MusicPlayer{
private:
string type; //will hold the type of the music player
int size; //the current number of the songs
CircleDLinkedList playerList; // list of the songs, CircleDLinkedList is the Doubly Circular Linked
List
public:
MusicPlayer(string);
virtual ~MusicPlayer();
void play(); //plays the current song, meaning that this method will print the properties of the Song
void next(); //moves to the net song and plays it
void previous(); ////moves to the previous song and plays it
void add (Song); //adds a song before the current song
void remove(); //removes the current song
void print(bool);//prints all songs that are in the list, starting from current to left is bool param is true
};
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any and all help with the methods would be greatly appreciated!
Playable Interface
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Create a Java interface named Playable that includes the following methods (and only the
following methods):
public void play();
public String getName(); // returns the name (for PlayList) or title (for Song) of Playable object.
public int getPlayTimeSeconds(); // For Song: returns the number of seconds in the song. For
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Both the Song and PlayList classes will implement this interface.
Song Class
public class Song
private String artist // the artist performing the song
private String title // the title of the song
private int minutes // number of min in length
private int seconds // number of seconds of length of the song (always less than 60)
// Add Getters / Setters for all fields
// Three constructors (remember to initialize ALL fields in each of the constructors - regardless
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return \"{Song: title = \" + title + \" artist = \" + artist + \"}\";
}
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}
Make the Song class implement the interface Comparable, and make the ordering criteria as
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vector next;
vector prev;
Node(int val, int lvl) : value(val), level(lvl) {
next.resize(lvl + 1, nullptr);
prev.resize(lvl + 1, nullptr);
}
};
class SkipList {
public:
int level;
Node* head;
Node* tail;
int MAXIMUM_ALLOWED_LEVELS;
SkipList(int maxLevels) : MAXIMUM_ALLOWED_LEVELS(maxLevels), level(0) {
head = new Node(INT_MIN, MAXIMUM_ALLOWED_LEVELS);
tail = new Node(INT_MAX, MAXIMUM_ALLOWED_LEVELS);
for (int i = 0; i <= MAXIMUM_ALLOWED_LEVELS; i++) {
head->next[i] = tail;
tail->prev[i] = head;
}
}
int RandomLevel() {
float probability = (float)rand() / RAND_MAX;
int lvl = 0;
while (probability < 0.5 && lvl < MAXIMUM_ALLOWED_LEVELS) {
lvl++;
probability = (float)rand() / RAND_MAX;
}
return lvl;
}
Node* CreateNode(int value, int level) {
return new Node(value, level);
}
void InsertElement(int value) {
Node* current = head;
vector update(MAXIMUM_ALLOWED_LEVELS + 1, nullptr);
for (int i = level; i >= 0; i--) {
while (current->next[i]->value < value) {
current = current->next[i];
}
update[i] = current;
}
current = current->next[0];
if (current->value != value) {
int ranLevel = RandomLevel();
if (ranLevel > level) {
for (int i = level + 1; i <= ranLevel; i++) {
update[i] = head;
}
level = ranLevel;
}
Node* n = CreateNode(value, ranLevel);
for (int i = 0; i <= ranLevel; i++) {
n->next[i] = update[i]->next[i];
n->prev[i] = update[i];
update[i]->next[i]->prev[i] = n;
update[i]->next[i] = n;
}
}
}
void Delete(int value) {
if (!Search(value)) {
cout << value << " does not exist" << endl;
return;
}
Node* current = head;
vector update(MAXIMUM_ALLOWED_LEVELS + 1, nullptr);
for (int i = level; i >= 0; i--) {
while (current->next[i]->value < value) {
current = current->next[i];
}
update[i] = current;
}
current = current->next[0];
for (int i = 0; i <= level; i++) {
if (update[i]->next[i] == current) {
update[i]->next[i] = current->next[i];
current->next[i]->prev[i] = update[i];
}
}
delete current;
}
bool Search(int value) {
Node* current = head;
for (int i = level; i >= 0; i--) {
while (current->next[i]->value < value) {
current = current->next[i];
}
}
current = current->next[0];
return current->value == value;
}
void Show() {
for (int i = 0; i <= level; i++) {
Node* node = head->next[i];
cout << "Level " << i << ": ";
while (node != tail) {
cout << node->value << " -> ";
node = node->next[i];
}
cout << "Tail" << endl;
}
}
void ShowBackwards() {
Node* currTail = tail;
for (int i = 0; i <= level; i++) {
Node* node = currTail->prev[i];
cout << "Level " << i << ": ";
while (node != head) {
cout << node->value << " <- ";
node = node->prev[i];
}
cout << "Head" << endl;
}
}
};
#endif
Code for priority Queue header file below
#ifndef PRIORITYQ_H
#define PRIORITYQ_H
#include
#include
#include // for INT_MAX
#include // for rand()
#include
using namespace std;
class Node {
publi.
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The
first is perhaps described by Milton Friedman (1970) who suggests the social responsibility of
business is
to increase its profits. The second claims that business has a corporate social responsibility,
which is
usefully described by Porter and Kramer (2011 )
(i) Outline Friedmans main arguments in support of his position.
(ii) Outline Porter and Kramers position on corporate social responsibility as a shared value.
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approaches: 1-Surveys/Questionnaires: Surveys involve collecting data through a series of
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large amounts of quantitative data from a large number of participants. 2-Interviews:
Interviews involve direct conversations between the researcher and the participant(s). They can
be structured (with predetermined questions) or unstructured (allowing for open-ended
responses). Interviews provide qualitative data and allow for in-depth exploration of topics.
3-Observations: Observational methods involve systematically watching and recording behavior,
events, or phenomena in their natural setting. Observations can be conducted in a participant's
natural environment (naturalistic observation) or in a controlled setting (laboratory observation).
4-Experiments: Experiments involve manipulating variables under controlled conditions to
observe their effects. They typically involve the use of control groups and random assignment to
ensure validity and minimize bias. Experiments are commonly used to establish cause-and-effect
relationships. 5-Existing Data: Researchers may gather data by utilizing existing sources
such as databases, records, archives, or publicly available information. This approach is known
as secondary data analysis. 6-Focus Groups: Focus groups involve a small group of
individuals who discuss specific topics or issues guided by a researcher. It allows for group
dynamics and interactions to generate insights and perspectives. 7-Case Studies: Case
studies involve in-depth investigations of individuals, groups, or events. They often use multiple
data sources (e.g., interviews, observations, documents) to provide a comprehensive
understanding of a particular case. These are just a few examples of data gathering
methods in research, and the choice of method depends on the research objectives, research
questions, available resources, and the nature of the phenomenon being studied. Explain the
data gathering method of your research.
There are several different methods of data gathering in research. H.pdf
There are several different methods of data gathering in research. Here are some common
approaches:
1-Surveys/Questionnaires: Surveys involve collecting data through a series of questions that can
be administered in written or electronic formats. They are useful for gathering large amounts of
quantitative data from a large number of participants.
2-Interviews: Interviews involve direct conversations between the researcher and the
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for open-ended responses). Interviews provide qualitative data and allow for in-depth exploration
of topics.
3-Observations: Observational methods involve systematically watching and recording behavior,
events, or phenomena in their natural setting. Observations can be conducted in a participant's
natural environment (naturalistic observation) or in a controlled setting (laboratory observation).
4-Experiments: Experiments involve manipulating variables under controlled conditions to
observe their effects. They typically involve the use of control groups and random assignment to
ensure validity and minimize bias. Experiments are commonly used to establish cause-and-effect
relationships.
5-Existing Data: Researchers may gather data by utilizing existing sources such as databases,
records, archives, or publicly available information. This approach is known as secondary data
analysis.
6-Focus Groups: Focus groups involve a small group of individuals who discuss specific topics
or issues guided by a researcher. It allows for group dynamics and interactions to generate
insights and perspectives.
7-Case Studies: Case studies involve in-depth investigations of individuals, groups, or events.
They often use multiple data sources (e.g., interviews, observations, documents) to provide a
comprehensive understanding of a particular case.
These are just a few examples of data gathering methods in research, and the choice of method
depends on the research objectives, research questions, available resources, and the nature of the
phenomenon being studied.
Explain the data gathering method of your research..
The Windows CreateProcess() system call creates a new process. What .pdf
The Windows CreateProcess() system call creates a new process. What is the equivalent system
call in Linux?
A create()
B process()
C clone().
D.fork().
The Seven Major Sources of Economic Progress are a framework that .pdf
The "Seven Major Sources of Economic Progress" are a framework that helps us understand the
key drivers of economic growth and development. These sources include property rights, the rule
of law, limited government, sound money, freedom to trade internationally, entrepreneurship,
and a competitive market system. While all of these sources play important roles in promoting
economic progression, it's challenging to single out one as the most important because they are
interrelated and often work in tandem to foster economic growth. However, if forced to choose,
the importance of property rights stands out to me personally. Property rights provide individuals
and businesses with the legal certainty and protection necessary to invest, innovate, and create
wealth. When individuals have confidence that their property will be secure and their efforts will
be rewarded, they are more likely to engage in productive economic activities. Property rights
also create a foundation for the rule of law and limited government, two other critical sources of
economic progress. While all the sources of economic progress are vital, property rights serve as
the cornerstone upon which the others are built. Without secure property rights, the other sources
become less effective in driving economic progress. Therefore, property rights can be seen as the
most fundamental of these sources, enabling the overall framework for economic development to
function optimally.
This is a discussion post from one of my classmates I'm only supposed to respond back to
themit's only a discussion post..
The following MATLAB code generates the plot of the unit-sample resp.pdf
The following MATLAB code generates the plot of the unit-sample response of the filter
characterized by System Function: H(z) = 2-142-2 = ; [z]> 1/01 clear all close all num=[0 1 1];
den= [1 1/12 -1/12]; hn-dimpulse (num, den) ; n=0:1: length (hn)-1; stem(nhn) The following
MATLAB code generates the plot of the unit-sample response of the filter characterized by
System Function: H(z)=1+121z1121z2z1+z2;z>31.
The financial statements and industry norms are shown below for Ever.pdf
The financial statements and industry norms are shown below for Everett, Inc.:
Compute the 7 financial ratios for Everett Inc for 2021 and 2022 and compare them against the
industry norms (better/worse).
Choose 7 from here to compareNormsCurrent Ratio4.00Acid Test (quick) ratio1.00Inventory
Turnover1.70Average collection period111.85Debt Ratio0.40Times Interest earned4.75Fixed-
asset turnover1.00Operating profit margin12%Return on common equity7%.
The plaintiff, Smith, is a United States Marine Corps veteran. He su.pdf
The plaintiff, Smith, is a United States Marine Corps veteran. He suffers from schizophrenia,
posttraumatic stress disorder, and depression, and he is functionally illiterate. Smith was living
out of his car and working as a trash collector when he was the victim of a fraud scheme. Smith
was approached by a participant in the scheme about a special investment program that would
not require him to invest any money. He agreed and two real estate purchases were orchestrated
in Smiths name using a false financial profile of his income, assets, and work and renting history.
Smith began receiving phone calls about missed mortgage payments and the properties
subsequently went into foreclosure. Smiths mental health deteriorated further and his ruined
credit history prevented him from renting an apartment. Smith brought suit against the associate
who handled the real estate closing and the firm he worked for, RKelley Law, PC, and Robert
Kelley, personally. Judgment entered against the PC, but the court dismissed the case against
Kelley for personal liability. At all times, Kelley was the sole shareholder of the PC. The day
after the judgment was entered against the PC, Kelley voted to wind up the corpo-ration. He
immediately opened a sole proprietorship called Law Office of R. Emmett Kelly. He used the
same office and had the same clients as under the PC. Smith brought suit to hold the sole
proprietor-ship liable as a successor corporation to the PC. In deposition testimony, Kelley was
asked whether he dissolved the PC because of the judgment. Kelley testified, That is exactly why
I dissolved it.
Is the sole proprietorship liable for the judgment against the PC? [Smith v. Kelley, 139 N.E.3d
314 (Mass.).
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