List of usage examples for java.util SortedMap firstKey
K firstKey();
From source file:Main.java
public static void main(String args[]) { Calendar now = Calendar.getInstance(); Locale locale = Locale.getDefault(); Map<String, Integer> names = now.getDisplayNames(Calendar.DAY_OF_WEEK, Calendar.LONG, locale); SortedMap<String, Integer> nav = new TreeMap<String, Integer>(names); System.out.printf("Whole list:%n%s%n", nav); System.out.printf("First key: %s\tFirst entry: %s%n", nav.firstKey(), nav.firstEntry()); }
From source file:Main.java
public static void main(String[] args) { SortedMap<String, Integer> sortedMap = new TreeMap<String, Integer>(); sortedMap.put("A", 1); sortedMap.put("B", 2); sortedMap.put("C", 3); sortedMap.put("D", 4); sortedMap.put("E", 5); sortedMap.put("java2s", 6); System.out.println(sortedMap.firstKey()); }
From source file:Main.java
public static void main(String[] args) { SortedMap<String, String> sMap = new TreeMap<>(); sMap.put("CSS", "style"); sMap.put("HTML", "mark up"); sMap.put("Oracle", "database"); sMap.put("XML", "data"); SortedMap<String, String> subMap = sMap.subMap("CSS", "XML"); System.out.println(subMap);//w ww.j av a 2s .c om // Get the first and last keys String firstKey = sMap.firstKey(); String lastKey = sMap.lastKey(); System.out.println("First Key: " + firstKey); System.out.println("Last key: " + lastKey); }
From source file:Main.java
public static void main(String[] args) { Comparator<String> keyComparator = Comparator.comparing(String::length) .thenComparing(String::compareToIgnoreCase); SortedMap<String, String> sMap = new TreeMap<>(keyComparator); sMap.put("CSS", "style"); sMap.put("HTML", "mark up"); sMap.put("Oracle", "database"); sMap.put("XML", "data"); SortedMap<String, String> subMap = sMap.subMap("CSS", "XML"); System.out.println(subMap);//from w w w .j a v a 2 s .c o m // Get the first and last keys String firstKey = sMap.firstKey(); String lastKey = sMap.lastKey(); System.out.println("First Key: " + firstKey); System.out.println("Last key: " + lastKey); }
From source file:Main.java
public static <T, U> U firstElement(SortedMap<T, U> m) { if (m == null || m.isEmpty()) { return null; }/*from w w w . ja v a 2 s.c om*/ return m.get(m.firstKey()); }
From source file:com.cloudera.oryx.kmeans.common.Weighted.java
/** * Sample items from a {@code List<Weighted>} where items with higher weights * have a higher probability of being included in the sample. * //from w w w . j a v a2 s .c om * @param things The iterable to sample from * @param size The number of items to sample * @return A list containing the sampled items */ public static <T extends Weighted<?>> List<T> sample(Iterable<T> things, int size, RandomGenerator random) { if (random == null) { random = RandomManager.getRandom(); } SortedMap<Double, T> sampled = Maps.newTreeMap(); for (T thing : things) { if (thing.weight() > 0) { double score = Math.log(random.nextDouble()) / thing.weight(); if (sampled.size() < size || score > sampled.firstKey()) { sampled.put(score, thing); } if (sampled.size() > size) { sampled.remove(sampled.firstKey()); } } } return Lists.newArrayList(sampled.values()); }
From source file:org.kalypso.model.wspm.tuhh.schema.simulation.PolynomeProcessor.java
public static <S> S forStationAdjacent(final SortedMap<BigDecimal, S> stationIndex, final BigDecimal station, final boolean upstream) { final BigDecimal pred = NumberUtils.decrement(station); final BigDecimal succ = NumberUtils.increment(station); if (upstream) { final SortedMap<BigDecimal, ? extends Object> successors = stationIndex.tailMap(succ); if (!successors.isEmpty()) return stationIndex.get(successors.firstKey()); } else {// w w w . j a v a 2s .com final SortedMap<BigDecimal, ? extends Object> predecessors = stationIndex.headMap(pred); if (!predecessors.isEmpty()) return stationIndex.get(predecessors.lastKey()); } return null; }
From source file:org.orekit.models.earth.GeoMagneticFieldFactory.java
/** Gets a geomagnetic field model for the given year. In case the specified * year does not match an existing model epoch, the resulting field is * generated by either time-transforming an existing model using its secular * variation coefficients, or by linear interpolating two existing models. * @param type the type of the field (e.g. WMM or IGRF) * @param models all loaded field models, sorted by their epoch * @param year the epoch of the resulting field model * @return a {@link GeoMagneticField} model for the given year * @throws OrekitException if the specified year is out of range of the available models *///from w ww .j a v a 2 s. co m private static GeoMagneticField getModel(final FieldModel type, final TreeMap<Integer, GeoMagneticField> models, final double year) throws OrekitException { final int epochKey = (int) (year * 100d); final SortedMap<Integer, GeoMagneticField> head = models.headMap(epochKey, true); if (head.isEmpty()) { throw new OrekitException(OrekitMessages.NON_EXISTENT_GEOMAGNETIC_MODEL, type.name(), year); } GeoMagneticField model = models.get(head.lastKey()); if (model.getEpoch() < year) { if (model.supportsTimeTransform()) { model = model.transformModel(year); } else { final SortedMap<Integer, GeoMagneticField> tail = models.tailMap(epochKey, false); if (tail.isEmpty()) { throw new OrekitException(OrekitMessages.NON_EXISTENT_GEOMAGNETIC_MODEL, type.name(), year); } final GeoMagneticField secondModel = models.get(tail.firstKey()); if (secondModel != model) { model = model.transformModel(secondModel, year); } } } return model; }
From source file:arun.com.chromer.util.ColorUtil.java
@ColorInt public static int getClosestAccentColor(@ColorInt int color) { final SortedMap<Double, Integer> set = new TreeMap<>(); color = (0xFFFFFF - color) | 0xFF000000; for (int i = 0; i < ACCENT_COLORS_700.length; i++) { set.put(colorDifference(color, ACCENT_COLORS_700[i]), i); }//from w w w . j av a 2 s. c o m return ACCENT_COLORS_700[set.get(set.firstKey())]; }
From source file:org.fede.util.Util.java
private static MoneyAmountSeries read(String name) { try (InputStream is = Util.class.getResourceAsStream("/" + name)) { final JSONSeries series = CONSULTATIO_SERIES.contains(name) ? readConsultatioSeries(is, OM) : OM.readValue(is, JSONSeries.class); final SortedMap<YearMonth, MoneyAmount> interpolatedData = new TreeMap<>(); final String currency = series.getCurrency(); for (JSONDataPoint dp : series.getData()) { if (interpolatedData.put(new YearMonth(dp.getYear(), dp.getMonth()), new MoneyAmount(dp.getValue(), currency)) != null) { throw new IllegalArgumentException("Series " + name + " has two values for year " + dp.getYear() + " and month " + dp.getMonth()); }/*from w w w. j a va 2s . co m*/ } final InterpolationStrategy strategy = InterpolationStrategy.valueOf(series.getInterpolation()); YearMonth ym = interpolatedData.firstKey(); final YearMonth last = interpolatedData.lastKey(); while (ym.monthsUntil(last) > 0) { YearMonth next = ym.next(); if (!interpolatedData.containsKey(next)) { interpolatedData.put(next, strategy.interpolate(interpolatedData.get(ym), ym, currency)); } ym = ym.next(); } return new SortedMapMoneyAmountSeries(currency, interpolatedData); } catch (IOException ioEx) { throw new IllegalArgumentException("Could not read series named " + name, ioEx); } }