Example usage for java.util Collections sort

Introduction

In this page you can find the example usage for java.util Collections sort.

Prototype

@SuppressWarnings("unchecked")
public static <T extends Comparable<? super T>> void sort(List<T> list)

Source Link

Document

Sorts the specified list into ascending order, according to the Comparable natural ordering of its elements.

Usage

From source file:Main.java

/** Returns two ArrayLists, containing the elements only present in the first and second argument, respectively. */
@SuppressWarnings("unchecked")
public static ArrayList<String>[] getUniqueElements(Collection<? extends String> list1,
        Collection<? extends String> list2) {
    final ArrayList<String> onlyInOne = new ArrayList<String>(list1);
    onlyInOne.removeAll(list2);/*from w ww. j  av  a2  s  . c  om*/
    Collections.sort(onlyInOne);

    final ArrayList<String> onlyInTwo = new ArrayList<String>(list2);
    onlyInTwo.removeAll(list1);
    Collections.sort(onlyInTwo);
    return new ArrayList[] { onlyInOne, onlyInTwo };
}

From source file:Main.java

public static final List<String> getListFromBundle(ResourceBundle rb, String prefix) {
    String name = null;//w w w.  j a  v  a 2 s .  c o m
    List<String> ret = new LinkedList<String>();
    Enumeration<String> names = rb.getKeys();
    while (names.hasMoreElements()) {
        name = names.nextElement();
        if (name != null && name.startsWith(prefix) && isInteger(name.substring(name.length() - 1))) {
            ret.add(rb.getString(name));
        }
    }
    Collections.sort(ret);
    return ret;
}

From source file:Main.java

/**
 * /*  w ww .  j a v a 2  s  .  c o m*/
 * @param <T>
 * @param a
 *            variable number of arguments of type <T>
 * @return
 */
public static <T extends Comparable<T>> T lowestValue(T... a) {
    if (null == a || a.length <= 0)
        return null;
    List<T> list = new ArrayList<T>();
    for (T t : a) {
        if (null != t) {
            list.add(t);
        }
    }
    Collections.sort(list);
    return list.get(0);
}

From source file:Main.java

public static List<BigDecimal> intervals(final List<BigDecimal> list) {
    // list must be sorted for interval calculation
    Collections.sort(list);
    final List<BigDecimal> retVal = new ArrayList<BigDecimal>();
    BigDecimal before = list.get(0);
    for (int i = 1; i < list.size(); i++) {
        final BigDecimal current = list.get(i);
        retVal.add(current.subtract(before));
        before = current;/*from w  w  w  . j  av  a 2 s  .  com*/
    }
    return retVal;
}

From source file:Main.java

/**
 * Return the items of an Iterable as a sorted list.
 *
 * @param <T>//w  w w . j a va  2  s. c  om
 *          The type of items in the Iterable.
 * @param items
 *          The collection to be sorted.
 * @return A list containing the same items as the Iterable, but sorted.
 */
public static <T extends Comparable<T>> List<T> sorted(Iterable<T> items) {
    List<T> result = toList(items);
    Collections.sort(result);
    return result;
}

From source file:Main.java

/**
 * Get the sorted selected positions in a byte with the right most
 * position as zero./*  ww  w  . j  a v a  2 s.c o m*/
 * @param input Byte to be evaluated
 * @return Array of integer positions.
 */
public static SortedSet<Integer> getSelectedPCR(byte input) {
    ArrayList<Integer> arrayList = new ArrayList<Integer>();
    byte mask = 0x01;
    for (int i = 0; i <= 7; i++) {
        int value = (input >>> i) & mask;
        if (value == 1) {
            arrayList.add(i);
        }
    }
    Collections.sort(arrayList);
    return Collections.unmodifiableSortedSet(new TreeSet<Integer>(arrayList));
}

From source file:Main.java

public static String getBinaryHash(Activity activity) throws IOException, NoSuchAlgorithmException {
    ArrayList<String> manifestEntries = new ArrayList<String>();
    addFolderEntriesToManifest(manifestEntries, "www", activity.getAssets());
    Collections.sort(manifestEntries);
    JSONArray manifestJSONArray = new JSONArray();
    for (String manifestEntry : manifestEntries) {
        manifestJSONArray.put(manifestEntry);
    }//  ww  w  . j a  v  a 2  s . com

    // The JSON serialization turns path separators into "\/", e.g. "www\/images\/image.png"
    String manifestString = manifestJSONArray.toString().replace("\\/", "/");
    return computeHash(new ByteArrayInputStream(manifestString.getBytes()));
}

From source file:com.coderadar.controller.MainController.java

public static void main(String[] args) {
    List<String> sortList = new ArrayList<String>();
    sortList.add("tc-5.5.x");
    sortList.add("tc-6.0.x");
    sortList.add("tc-7.0.x");
    sortList.add("tc-8.0.x");
    sortList.add("trunk");
    Collections.sort(sortList);
    Collections.sort(sortList, Collections.reverseOrder());
    System.out.println("");
}

From source file:Main.java

public static ArrayList<String> getCountriesArray() {
    String[] locales = Locale.getISOCountries();
    ArrayList<String> countries = new ArrayList<String>();
    for (String countryCode : locales) {

        Locale locale = new Locale("", countryCode);
        try {//from ww w.j  a  v a 2 s  .  c  o m
            Currency currency = Currency.getInstance(locale);
            countries.add(locale.getDisplayCountry() + " (" + currency.getCurrencyCode() + ")");
        } catch (Exception e) {

        }
    }
    Collections.sort(countries);
    return countries;
}

From source file:Main.java

/** Sorts given list and returns it. */
public static <E extends Comparable<? super E>, L extends List<E>> L sort(L list) {
    Collections.sort(list);
    return list;//from  www  .  j av a  2s  . c  om
}