Example usage for java.util.stream Collectors joining

Introduction

In this page you can find the example usage for java.util.stream Collectors joining.

Prototype

public static Collector<CharSequence, ?, String> joining() 

Source Link

Document

Returns a Collector that concatenates the input elements into a String , in encounter order.

Usage

From source file:Main.java

public static void main(String[] args) {
    Stream<String> s = Stream.of("a", "b", "c");

    String names = s.collect(Collectors.joining());

    System.out.println(names);/*from  w  w w . j av a2  s .  c om*/
}

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From source file:Main.java

public static void main(String... args) {
    String n = Food.menu.stream().map(Food::getName).collect(Collectors.joining());
    System.out.println(n);

}

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From source file:Main.java

public static void main(String[] args) {
    List<Employee> persons = Employee.persons();
    String names = persons.stream().map(Employee::getName).collect(Collectors.joining());

    String delimitedNames = persons.stream().map(Employee::getName).collect(Collectors.joining(", "));

    String prefixedNames = persons.stream().map(Employee::getName)
            .collect(Collectors.joining(", ", "Hello ", ".  Goodbye."));

    System.out.println("Joined names:  " + names);
    System.out.println("Joined,  delimited names:  " + delimitedNames);
    System.out.println(prefixedNames);
}

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From source file:com.hubrick.raml.mojo.util.JavaNames.java

public static String toJavaName(String string) {
    checkArgument(!Strings.isNullOrEmpty(string), "Input string cannot be null or empty");
    final String[] elements = string.split("(?i:[^a-z0-9]+)");
    return stream(spliterator(elements), false).map(indexed())
            .map(element -> element.index() > 0 ? StringUtils.capitalize(element.value()) : element.value())
            .collect(Collectors.joining());
}

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From source file:br.com.Summoner.core.base.cartas.monk.MonkCard.java

@Override
public long CalculaBonus(Jogada jogada, List<Card> listaMonstrosAdversarios) {
    List<Card> cartasUtilizadasCombo = jogada.CartasUtilizadas.stream()
            .filter(carta -> carta.TipoCarta == TipoCarta.Item && carta.TipoMonstro == TipoMonstro.Monk)
            .collect(Collectors.toList());
    MonkComboResult comboResult = new MonkComboResult();
    long forcaBonus = 0;

    if (cartasUtilizadasCombo.size() > 0) {
        String[] golpesCombo = cartasUtilizadasCombo
                .stream().map(carta -> ((MonkItemCard) carta).Golpes.stream()
                        .map(golpe -> golpe.tipoGolpe.toString()).collect(Collectors.joining()))
                .collect(Collectors.joining()).split("");
        Arrays.sort(golpesCombo);
        String comboRealizado = StringUtils.join(Arrays.asList(golpesCombo), "");
        comboResult.ComboRealizado = comboRealizado;
        //          comboResult.CombosCarta.addAll(this.Combos);

        for (int i = 0; i < this.Combos.size(); i++) {
            MonkMonsterCombo combo = this.Combos.get(i);

            char[] criaturaCombo = combo.CombinacaoCombo.toCharArray();
            Arrays.sort(criaturaCombo);
            String comboDaCriatura = new String(criaturaCombo);

            boolean encontrou = comboRealizado.contains(comboDaCriatura);

            if (encontrou && forcaBonus < combo.DanoCombo) {

                forcaBonus = combo.DanoCombo;
                comboResult.ValorComboRealizado = forcaBonus;
                comboResult.ComboCriatura = comboDaCriatura;

            }//from   w ww  .  j a va  2s.c  o  m
        }

        CombosRealizados.add(comboResult);
    }

    return forcaBonus;
}

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From source file:com.github.robozonky.common.remote.InterceptingInputStreamTest.java

@Test
void tooLong() throws IOException {
    final int maxLength = 1024;
    final int uuidLength = UUID.randomUUID().toString().length();
    final String contents = IntStream.range(0, (maxLength / uuidLength) + 2)
            .mapToObj(i -> UUID.randomUUID().toString()).collect(Collectors.joining());
    final InputStream s = new ByteArrayInputStream(contents.getBytes());
    try (final InterceptingInputStream s2 = new InterceptingInputStream(s)) {
        assertThat(s2.getContents()).endsWith("...more...");
    }/*from w  ww.j a  v  a2s .c o  m*/
}

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From source file:io.knotx.knot.assembler.impl.FragmentAssemblerKnotProxyImpl.java

@Override
protected Single<KnotContext> processRequest(KnotContext knotContext) {
    if (hasFragments(knotContext)) {
        try {//from   w  w  w  .  j a  va 2 s.c om
            String joinedFragments = knotContext.getFragments().stream()
                    .map(configuration.unprocessedFragmentStrategy()::get).collect(Collectors.joining());

            return Single.just(createSuccessResponse(knotContext, joinedFragments));
        } catch (Exception ex) {
            LOGGER.error("Exception happened during Fragment assembly.", ex);
            return Single.just(processError(knotContext, ex));
        }
    } else {
        LOGGER.error("Fragments are empty or not exists in KnotContext.");
        return Single.just(processError(knotContext, null));
    }
}

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From source file:de.bund.bfr.math.MultivariateOptimization.java

public static MultivariateOptimization createLodOptimizer(String formula, List<String> parameters,
        List<Double> targetValues, Map<String, List<Double>> variableValues, double levelOfDetection)
        throws ParseException {
    String sdParam = parameters.stream().collect(Collectors.joining());
    List<String> params = Stream.concat(parameters.stream(), Stream.of(sdParam)).collect(Collectors.toList());

    return new MultivariateOptimization(params, sdParam,
            new LodFunction(formula, params, variableValues, targetValues, levelOfDetection, sdParam));
}

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From source file:com.formkiq.core.service.generator.pdfbox.TextToPDFieldMapper.java

/**
* Override the default functionality of PDFTextStripper.
*///from  ww w  .j  av  a  2  s  .c o m
@Override
protected void writeString(final String o, final List<TextPosition> textPositions) throws IOException {

    Integer page = Integer.valueOf(getCurrentPageNo() - 1);

    if (!this.textLocations.containsKey(page)) {
        this.textLocations.put(page, new ArrayList<>());
    }

    // TODO replace with CollectionUtil.groupBy
    List<List<TextPosition>> splits = split(removeNonPrintableAndExtraSpaces(textPositions));

    for (List<TextPosition> tps : splits) {

        String text = tps.stream().map(s -> s.getUnicode()).collect(Collectors.joining());

        if (text.matches(".*[a-zA-Z0-9/]+.*")) {

            PDRectangle rect = calculateTextPosition(tps);

            PDFont font = tps.get(0).getFont();
            float fontSize = tps.stream().map(s -> Float.valueOf(s.getFontSizeInPt())).max(Float::compare)
                    .orElse(Float.valueOf(0)).floatValue();

            PdfTextField tf = new PdfTextField();
            tf.setText(text.replaceAll("\t", " "));
            tf.setRectangle(rect);
            tf.setFontSize(fontSize);
            tf.setFontName(font.getName());

            LOG.log(Level.FINE, "page=" + page + ",rect=" + rect + ",fontsize=" + fontSize + ",font=" + font
                    + ",text=" + text);
            this.textLocations.get(page).add(tf);
        }
    }
}

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From source file:fi.helsinki.opintoni.config.http.converter.CsvHttpMessageConverter.java

private String getCsv(CsvResponse<T> response) {
    CsvMapper csvMapper = new CsvMapper();
    CsvSchema csvSchema = csvMapper.schemaFor(response.getType());
    return response.entries.stream().map(entry -> toCsvRow(csvMapper, csvSchema, entry))
            .collect(Collectors.joining());
}

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