Example usage for java.util Comparator Comparator

List of usage examples for java.util Comparator Comparator

  1. HOME
  2. Java
  3. java
  4. java.util.*
  5. Comparator
  6. Comparator

Introduction

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

Prototype

Comparator

Source Link

Usage

From source file:Main.java

public static void main(String[] args) {
    String[] strings = { "Here", "are", "some", "sample", "strings", "to", "be", "sorted" };

    Arrays.sort(strings, new Comparator<String>() {
        public int compare(String s1, String s2) {
            int c = s2.length() - s1.length();
            if (c == 0)
                c = s1.compareToIgnoreCase(s2);
            return c;
        }/*from   www. j a  va 2 s  .c  o  m*/
    });

    for (String s : strings)
        System.out.print(s + " ");
}

From source file:AnimationTester.java

public static void main(String[] args) {

    Integer[] values = new Integer[] { 1, 2, 7, 3, 5 };
    Comparator<Integer> comp = new Comparator<Integer>() {
        public int compare(Integer d1, Integer d2) {
            return d1.compareTo(d2);
        }/*from w w w.  ja v  a2  s  .  c  o  m*/
    };
    MergeSorter.sort(values, comp);
    for (int i = 0; i < values.length; i++) {
        System.out.print(values[i] + " ");
    }

}

From source file:Main.java

public static void main(String[] args) {
    // setup/* w  w w. j a  va  2s.c om*/
    List<Integer> list = new ArrayList<Integer>();
    list.add(4);
    list.add(3);

    // classic way
    list.sort(new Comparator<Integer>() {

        @Override
        public int compare(Integer a, Integer b) {
            return a - b;
        }
    });
    System.out.println(list);

    // lambda way, the shortest way
    list.sort((a, b) -> a - b);
    System.out.println(list);

}

From source file:Main.java

public static void main(String[] args) {
    // setup/*w  ww . j  a  v  a  2 s .c o m*/
    List<Integer> list = new ArrayList<Integer>();
    list.add(4);
    list.add(3);

    // classic way
    list.sort(new Comparator<Integer>() {

        @Override
        public int compare(Integer a, Integer b) {
            return a - b;
        }
    });
    System.out.println(list);

    // lambda way
    Comparator<Integer> lambdaComparator = (Integer a, Integer b) -> b - a;
    list.sort(lambdaComparator);
    System.out.println(list);

}

From source file:Main.java

public static void main(String[] args) {
    List<String> list = new ArrayList<>();
    list.add("acowa");
    list.add("cow");
    list.add("aow");
    Collections.sort(list, new Comparator<String>() {

        @Override//from  w  w w.ja v  a  2 s.  c  o m
        public int compare(String o1, String o2) {
            if (o1.length() > o2.length()) {
                return 1;
            } else {
                return o1.compareTo(o2);
            }
        }
    });

    System.out.println(list);
}

From source file:MyObject.java

public static void main(String[] args) {
    Set<MyObject> set = new TreeSet<>(new Comparator<MyObject>() {
        @Override//from   ww w  .j  a  v a 2  s.c om
        public int compare(MyObject left, MyObject right) {
            return left.value - right.value;
        }
    });
    set.add(new MyObject(1));
    set.add(new MyObject(2));
    set.add(new MyObject(3));
    set.add(new MyObject(1)); // '1' is already in set
    System.out.println("size:" + set.size());// print 3
    System.out.println(set.remove(new MyObject(3)));
    System.out.println("size:" + set.size());
}

From source file:Main.java

public static void main(String args[]) {
    JTextComponent component = new JTextArea();

    // Process action list
    Action actions[] = component.getActions();
    // Define comparator to sort actions
    Comparator<Action> comparator = new Comparator<Action>() {
        public int compare(Action a1, Action a2) {
            String firstName = (String) a1.getValue(Action.NAME);
            String secondName = (String) a2.getValue(Action.NAME);
            return firstName.compareTo(secondName);
        }//from w  w  w  . jav  a  2s.  co m
    };
    Arrays.sort(actions, comparator);

    int count = actions.length;
    System.out.println("Count: " + count);
    for (int i = 0; i < count; i++) {
        System.out.printf("%28s : %s\n", actions[i].getValue(Action.NAME), actions[i].getClass().getName());
    }
}

From source file:Main.java

public static void main(String args[]) {
    JTextComponent component = new JTextField();

    // Process action list
    Action actions[] = component.getActions();
    // Define comparator to sort actions
    Comparator<Action> comparator = new Comparator<Action>() {
        public int compare(Action a1, Action a2) {
            String firstName = (String) a1.getValue(Action.NAME);
            String secondName = (String) a2.getValue(Action.NAME);
            return firstName.compareTo(secondName);
        }/*from   w  ww  . j ava2  s  .c  o m*/
    };
    Arrays.sort(actions, comparator);

    int count = actions.length;
    System.out.println("Count: " + count);
    for (int i = 0; i < count; i++) {
        System.out.printf("%28s : %s\n", actions[i].getValue(Action.NAME), actions[i].getClass().getName());
    }
}

From source file:ListActionsJTextPane.java

public static void main(String args[]) {
    JTextComponent component = new JTextPane();

    // Process action list
    Action actions[] = component.getActions();
    // Define comparator to sort actions
    Comparator<Action> comparator = new Comparator<Action>() {
        public int compare(Action a1, Action a2) {
            String firstName = (String) a1.getValue(Action.NAME);
            String secondName = (String) a2.getValue(Action.NAME);
            return firstName.compareTo(secondName);
        }//  w w  w  . j  av  a  2 s .c  om
    };
    Arrays.sort(actions, comparator);

    int count = actions.length;
    System.out.println("Count: " + count);
    for (int i = 0; i < count; i++) {
        System.out.printf("%28s : %s\n", actions[i].getValue(Action.NAME), actions[i].getClass().getName());
    }
}

From source file:ListActionsJEditorPane.java

public static void main(String args[]) {
    JTextComponent component = new JEditorPane();

    // Process action list
    Action actions[] = component.getActions();
    // Define comparator to sort actions
    Comparator<Action> comparator = new Comparator<Action>() {
        public int compare(Action a1, Action a2) {
            String firstName = (String) a1.getValue(Action.NAME);
            String secondName = (String) a2.getValue(Action.NAME);
            return firstName.compareTo(secondName);
        }//from   www  .j  ava 2  s.c om
    };
    Arrays.sort(actions, comparator);

    int count = actions.length;
    System.out.println("Count: " + count);
    for (int i = 0; i < count; i++) {
        System.out.printf("%28s : %s\n", actions[i].getValue(Action.NAME), actions[i].getClass().getName());
    }
}