Example usage for java.util List add

Introduction

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

Prototype

boolean add(E e);

Source Link

Document

Appends the specified element to the end of this list (optional operation).

Usage

From source file:Main.java

public static void main(String args[]) throws Exception {

    List<String> list = new ArrayList<String>();
    list.add("A");
    list.add("B");
    list.add("C");

    System.out.println(list.remove(0));
    System.out.println(list.remove("B"));
    System.out.println(list);/*  www . ja v a  2s  .com*/

}

From source file:Main.java

public static void main(String[] args) {
    List<String> myList = new ArrayList<String>();
    myList.add("Hello");
    myList.add("World");
    myList.add("World");
    Set<String> set = new HashSet<String>(myList);

    System.out.println(set);//ww  w.j  a va 2 s.  c  o m
}

From source file:Main.java

public static void main(String[] args) {
    List<String> myList = new ArrayList<String>();
    myList.add("Hello");
    myList.add(0, "World");
    myList.add("java2s.com");
    Set<String> set = new HashSet<String>(myList);

    System.out.println(set);//from   w  ww .  ja va2  s  .c  o  m
}

From source file:Main.java

public static void main(String args[]) throws Exception {

    List<String> list = new ArrayList<String>();
    list.add("A");
    list.add("B");
    list.add("C");
    list = Collections.unmodifiableList(list);
    list.add(1, "G");

    System.out.println(list);/*from w ww  .ja  v a  2 s .  c  o m*/

}

From source file:Main.java

public static void main(String[] argv) {
    List<String> list = new ArrayList<String>();
    list.add("A");
    list.add("2");
    list.add("c2");

    System.out.println(countDistinctElements(list, 0, list.size()));
}

From source file:Main.java

public static void main(String[] args) {
    List<String> list = new ArrayList<>();
    list.add("Java");
    list.add("R");
    list.add("CSS");
    list.add("XML");

    System.out.println("List: " + list);

    // Uses List.sort() method with a Comparator
    list.sort(Comparator.comparing(String::length));

    System.out.println("Sorted List:  " + list);

}

From source file:Main.java

public static void main(String[] args) {
    List<String> list = new ArrayList<>();
    list.add("Java");
    list.add("R");
    list.add("CSS");
    list.add("XML");

    Collections.sort(list);/* w  ww  . ja v a  2s . c om*/
    System.out.println("List: " + list);

    // Rotate elements by 2
    Collections.rotate(list, 2);
    System.out.println("After  Rotating by  2: " + list);

}

From source file:Main.java

public static void main(String[] args) {
    List<String> list = new ArrayList<>();
    list.add("J");
    list.add("R");
    list.add("C");
    list.add("X");

    System.out.println("List: " + list);

    // Uses Comparable implementation in String class
    // to sort the list in natural order
    Collections.sort(list);//w  w w  .  j  ava 2 s .c o  m
    System.out.println("Sorted List:  " + list);

}

From source file:Main.java

public static void main(String[] args) {
    List<String> list = new ArrayList<>();
    list.add("Java");
    list.add("R");
    list.add("CSS");
    list.add("XML");

    Collections.sort(list);// w w  w . j a va  2 s .  c o  m
    System.out.println("List: " + list);

    Collections.shuffle(list);
    System.out.println("List: " + list);

    Collections.shuffle(list);
    System.out.println("List: " + list);
}

From source file:Main.java

public static void main(String[] args) {
    List<String> strings = new LinkedList<>();
    strings.add("a");
    strings.add("B");
    strings.add("ab");
    strings.add("abc");
    strings.add("ABC");

    ConcurrentMap<Integer, List<String>> byLength = strings.parallelStream()
            .collect(Collectors.groupingByConcurrent(String::length));

    System.out.println(byLength);
}