Example usage for java.util Arrays sort

Introduction

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

Prototype

public static void sort(Object[] a)

Source Link

Document

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

Usage

From source file:Main.java

public static void main(String[] args) {
    int[][] array2d = { { 21, 14, 13, 12, 15 }, { 4, 25, 23, 22, 9 }, { 4, 7, 8, 98, 24 } };
    int[] list = new int[array2d.length * array2d[0].length];

    int listPos = 0;
    for (int i = 0; i < array2d.length; i++) {
        for (int j = 0; j < array2d.length; j++) {
            list[listPos++] = array2d[i][j];
        }//  ww  w .  ja  v a 2  s  .co m
    }
    Arrays.sort(list);
    System.out.println(median(list));
}

From source file:Main.java

public static void main(String[] args) throws FileNotFoundException {
    List<Integer> arraySource = new ArrayList<>();
    for (int i = 0; i < 99999; i++) {
        arraySource.add(i);// w w w.  j av  a  2s.c om
    }

    Integer[] myArray = new Integer[999];
    myArray = arraySource.toArray(myArray);
    long startTime = System.currentTimeMillis();
    Arrays.sort(myArray);
    long endTime = System.currentTimeMillis();
    System.out.println("Time take in serial: " + (endTime - startTime) / 1000.0);

    Integer[] myArray2 = new Integer[999];
    myArray2 = arraySource.toArray(myArray);
    startTime = System.currentTimeMillis();
    Arrays.parallelSort(myArray2);
    endTime = System.currentTimeMillis();
    System.out.println("Time take in parallel: " + (endTime - startTime) / 1000.0);

}

From source file:Main.java

public static void main(String[] args) {
    Car car1 = new Car("A", 5000);
    Car car2 = new Car("B", 5000);
    Car car3 = new Car("C", 4000);

    System.out.println("Car 1 equals Car 2: " + car1.compareTo(car2));
    System.out.println("Car 1 equals Car 3: " + car1.compareTo(car3));
    System.out.println("Car 2 equals Car 3: " + car2.compareTo(car3));

    Car[] carArray = new Car[] { car1, car2, car3 };
    Arrays.sort(carArray);

    for (Car car : carArray)
        System.out.println(car.toString());
}

From source file:MainClass.java

public static void main(String args[]) {

    int array[] = new int[10];
    for (int i = 0; i < 10; i++)
        array[i] = 3 * i;/* w  w  w  . ja va2 s .c o  m*/

    System.out.print("Original contents: ");
    display(array);
    Arrays.sort(array);
    System.out.print("Sorted: ");
    display(array);

    Arrays.fill(array, 2, 6, -1);
    System.out.print("After fill(): ");
    display(array);

    Arrays.sort(array);
    System.out.print("After sorting again: ");
    display(array);

    System.out.print("The value 9 is at location ");
    int index = Arrays.binarySearch(array, 9);

    System.out.println(index);
}

From source file:MainClass.java

public static void main(String[] args) {
    // Build a vector of words to be sorted
    ArrayList list = new ArrayList();
    list.add("m");
    list.add("c2");
    list.add("e");
    list.add("c1");

    Collator collate = Collator.getInstance();

    CollationKey[] keys = new CollationKey[list.size()];

    for (int k = 0; k < list.size(); k++)
        keys[k] = collate.getCollationKey((String) list.get(k));

    Arrays.sort(keys);

    for (int l = 0; l < keys.length; l++) {
        System.out.println(keys[l].getSourceString());
    }//from  w  w w.j  ava 2s  . c  o  m
}

From source file:Main.java

public static void main(String[] args) {
    HashMap<String, Integer> map = new HashMap<String, Integer>();
    map.put("d", 5);
    map.put("c", 4);
    map.put("b", 2);
    map.put("a", 1);

    Integer value[] = new Integer[map.size()];

    Set keySet = map.keySet();//from   w  w  w.j ava 2 s.  c  om
    Iterator t = keySet.iterator();
    int a = 0;
    while (t.hasNext()) {
        value[a] = map.get(t.next());
        a++;
    }

    Arrays.sort(value);

    for (int i = 0; i < map.size(); i++) {
        t = keySet.iterator();
        while (t.hasNext()) {
            String temp = (String) t.next();
            if (value[i].equals(map.get(temp))) {
                System.out.println(value[i] + " = " + temp);
            }
        }
    }
}

From source file:MainClass.java

public static void main(final String[] args) {
    File path = new File(".");
    String[] list;//from  w ww.  j a v a2  s.co  m
    if (args.length == 0)
        list = path.list();
    else
        list = path.list(new FilenameFilter() {
            private Pattern pattern = Pattern.compile(args[0]);

            public boolean accept(File dir, String name) {
                return pattern.matcher(new File(name).getName()).matches();
            }
        });
    Arrays.sort(list);
    for (int i = 0; i < list.length; i++)
        System.out.println(list[i]);
}

From source file:ComboSortList.java

public static void main(String[] args) {
    Display display = new Display();
    Shell shell = new Shell(display);
    shell.setLayout(new FillLayout());

    String[] ITEMS = { "A", "B", "C", "D", "E", "F" };
    Arrays.sort(ITEMS);
    final Combo combo = new Combo(shell, SWT.DROP_DOWN);
    combo.setItems(ITEMS);//from w  ww.  j  a v a  2  s  .c o m

    combo.addSelectionListener(new SelectionListener() {
        public void widgetSelected(SelectionEvent e) {
            System.out.println("Selected index: " + combo.getSelectionIndex() + ", selected item: "
                    + combo.getItem(combo.getSelectionIndex()) + ", text content in the text field: "
                    + combo.getText());
        }

        public void widgetDefaultSelected(SelectionEvent e) {
            System.out.println("Default selected index: " + combo.getSelectionIndex() + ", selected item: "
                    + (combo.getSelectionIndex() == -1 ? "<null>" : combo.getItem(combo.getSelectionIndex()))
                    + ", text content in the text field: " + combo.getText());
            String text = combo.getText();
            if (combo.indexOf(text) < 0) { // Not in the list yet.
                combo.add(text);

                // Re-sort
                String[] items = combo.getItems();
                Arrays.sort(items);
                combo.setItems(items);
            }
        }
    });

    shell.open();
    while (!shell.isDisposed()) {
        if (!display.readAndDispatch()) {
            display.sleep();
        }
    }
    display.dispose();
}

From source file:Main.java

  public static void main(String[] args) {
  char charArray[] = { 'a', 'b', 'd', 'e' };
  Arrays.sort(charArray);

  char searchValue = 'b';
  System.out.println(Arrays.binarySearch(charArray, searchValue));

  searchValue = 'z';
  System.out.println(Arrays.binarySearch(charArray, searchValue));

}

From source file:Main.java

public static void main(String[] args) {
    String[] allTimeZones = TimeZone.getAvailableIDs();

    Arrays.sort(allTimeZones);

    for (String timezone : allTimeZones) {
        System.out.println(timezone);
    }//from ww  w.j a v  a 2  s .  c  o  m
}