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aeds2
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Classe em java

This commit is contained in:
Felipe 2021-03-30 17:15:00 -03:00
parent 81ce7eebc8
commit 5a0e1dc335
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tps/fonte/Template.java Normal file
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import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.text.ParseException;
public class Template {
// funcao que simula um construtor
public static Track cadastra(String dadosMusica) throws ParseException {
String campos[] = new String[19];
int j = 0;
String temp = "";
for (int i = 0; i < 19; i++) {
temp = "";
while (j < dadosMusica.length() && ((dadosMusica.charAt(j) != ',')
|| !(dadosMusica.charAt(j) == ',' && dadosMusica.charAt(j + 1) != ' '))) {
if (dadosMusica.charAt(j) != '"')
temp += dadosMusica.charAt(j);
j++;
}
j++;
campos[i] = temp;
}
Track musica = new Track(campos);
return musica;
}
/*
* leitura das musicas e geração dos objetos Track
*/
public static Track[] inserirPlaylist(int quantidade, String idList[], String totalMusicList[]) throws ParseException {
Track musicas[] = new Track[quantidade];
for (int i = 0; i < quantidade; i++) {
for (int j = 0; j < totalMusicList.length; j++) {
if (totalMusicList[j].contains(idList[i])) {
String dadosMusic = totalMusicList[j];
musicas[i] = cadastra(dadosMusic);
j = totalMusicList.length;
}
}
}
return musicas;
}
/*
* leitura de todas as linhas da entrada padrão
*/
public static int entradaPadrao(String idList[]) throws IOException {
BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
int i = 0;
// faco a leitura dos ids do pub.in
String linha = in.readLine();
while (!(linha.contains("FIM"))) {
idList[i] = linha;
i++;
linha = in.readLine();
}
return i;
}
/*
* leitura de todas as musicas do arquivo de entrada /tmp/data.csv
*/
public static String[] ler() throws Exception {
final int TOTAL_MUSIC_NUMBER = 170625;
String totalMusicList[] = new String[TOTAL_MUSIC_NUMBER];
FileReader arquivo = new FileReader("./tmp/data.csv");
BufferedReader ler = new BufferedReader(arquivo);
String linha = ler.readLine();
linha = ler.readLine();
int i = 0;
while (linha != null) {
totalMusicList[i] = linha;
linha = ler.readLine();
i++;
}
arquivo.close();
return totalMusicList;
}
public static void main(String args[]) throws Exception {
// vetor que armazena os ids da entrada padrao pub.in
String idList[] = new String[500];
int playlistTam = entradaPadrao(idList);
// leitura de todas as musicas do arquivo de entrada /tmp/data.csv
String totalMusicList[] = ler();
Track musicas[] = inserirPlaylist(playlistTam, idList, totalMusicList);
for(Track musica:musicas)
musica.imprimir();
}
}

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tps/fonte/Track.java Normal file
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package classe;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
public class Track {
// (0)valence,(1)year,(2)acousticness,(3)artists,(4)danceability,(5)duration_ms,(6)energy,
// (7)explicit,(8)id,(9)instrumentalness,(10)key,(11)liveness,(12)loudness,(13)mode,
// (14)name,(15)popularity,(16)release_date,(17)speechiness,(18)tempo
private String id; // 8
private String key; // 10
private String artists; // 3
private Date realease; // 16
private double acousticness; // 2
private double danceability; // 4
private double energy; // 6
private int duration; // 5
private double instrumentalness; // 9
private double valence; // 0
private int popularity; // 15
private float tempo; // 18
private double liveness; // 11
private double loudness; // 12
private double speechiness; // 17
private int year; // 1
public Track() {
this.id = "";
}
public Track(String[] values) throws ParseException {
this.id = values[8]; // 8
this.nome = values[14]; // 14
this.key = values[10]; // 10
this.acousticness = Double.parseDouble(values[2]); // 2
this.danceability = Double.parseDouble(values[4]); // 4
this.energy = Double.parseDouble(values[6]); // 6
this.duration = Integer.parseInt(values[5]); // 5
this.instrumentalness = Double.parseDouble(values[9]); // 9
this.valence = Double.parseDouble(values[0]); // 0
this.popularity = Integer.parseInt(values[15]); // 15
this.tempo = Float.parseFloat(values[18]); // 18
this.liveness = Double.parseDouble(values[11]); // 11
this.loudness = Double.parseDouble(values[12]); // 12
this.speechiness = Double.parseDouble(values[17]); // 17
this.year = Integer.parseInt(values[1]); // 1
String artistsString = "";
int i = 0;
while (i < values[3].length()) {
if (!(values[3].charAt(i) == 39 && (values[3].charAt(i - 1) == 91 ||
values[3].charAt(i + 1) == 93 || values[3].charAt(i + 1) == 44 ||
values[3].charAt(i - 2) == 44))) {
artistsString += values[3].charAt(i);
}
i++;
}
artists = artistsString; // 3 ;
SimpleDateFormat formato = new SimpleDateFormat("yyyy-MM-dd");
if (values[16].length() == 4) {
realease = formato.parse(values[16] + "-01-01");
} else if (values[16].length() == 7) {
realease = formato.parse(values[16] + "-01");
} else {
realease = formato.parse(values[16]);
}
}
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getNome() {
return nome;
}
public void setName(String nome) {
this.nome = nome;
}
public String getKey() {
return key;
}
public void setKey(String key) {
this.key = key;
}
public String getArtists() {
return artists;
}
public void setArtists(String artists) {
this.artists = artists;
}
public Date getRealease() {
return realease;
}
public void setRealease(Date realease) {
this.realease = realease;
}
public double getAcousticness() {
return acousticness;
}
public void setAcousticness(double acousticness) {
this.acousticness = acousticness;
}
public double getDanceability() {
return danceability;
}
public void setDanceability(double danceability) {
this.danceability = danceability;
}
public double getEnergy() {
return energy;
}
public void setEnergy(double energy) {
this.energy = energy;
}
public int getDuration() {
return duration;
}
public void setDuration(int duration) {
this.duration = duration;
}
public double getInstrumentalness() {
return instrumentalness;
}
public void setInstrumentalness(double instrumentalness) {
this.instrumentalness = instrumentalness;
}
public double getValence() {
return valence;
}
public void setValence(double valence) {
this.valence = valence;
}
public int getPopularity() {
return popularity;
}
public void setPopularity(int popularity) {
this.popularity = popularity;
}
public float getTempo() {
return tempo;
}
public void setTempo(float tempo) {
this.tempo = tempo;
}
public double getLiveness() {
return liveness;
}
public void setLiveness(double liveness) {
this.liveness = liveness;
}
public double getLoudness() {
return loudness;
}
public void setLoudness(double loudness) {
this.loudness = loudness;
}
public double getSpeechiness() {
return speechiness;
}
public void setSpeechiness(double speechiness) {
this.speechiness = speechiness;
}
public int getYear() {
return year;
}
public void setYear(int year) {
this.year = year;
}
public Elemento clone() {
Track novo = new Track();
novo.nome = this.nome;
novo.id = this.id;
novo.key = this.key;
novo.artists = this.artists;
novo.realease = this.realease;
novo.acousticness = this.acousticness;
novo.danceability = this.danceability;
novo.energy = this.energy;
novo.duration = this.duration;
novo.instrumentalness = this.instrumentalness;
novo.valence = this.valence;
novo.popularity = this.popularity;
novo.tempo = this.tempo;
novo.liveness = this.liveness;
novo.loudness = this.loudness;
novo.speechiness = this.speechiness;
novo.year = this.year;
return novo;
}
public void imprimir() throws Exception {
System.out.println(this.toString());
}
public String toString() {
SimpleDateFormat sdf = new SimpleDateFormat("dd/MM/yyyy");
return id + " ## " + artists.toString() + " ## " + nome + " ## " + sdf.format(realease) + " ## " + acousticness
+ " ## " + danceability + " ## " + instrumentalness + " ## " + liveness + " ## " + loudness + " ## "
+ speechiness + " ## " + energy + " ## " + duration;
}
}