Example usage for java.util ArrayList ArrayList

Introduction

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

Prototype

public ArrayList()

Source Link

Document

Constructs an empty list with an initial capacity of ten.

Usage

From source file:Main.java

public static void main(String[] argv) throws Exception {
    List<String> list1 = new ArrayList();
    List<String> list2 = new ArrayList();

    list1.addAll(list2);/* ww w.j av a 2 s. c  o  m*/

    list1.removeAll(list2);

    list1.retainAll(list2);

    list1.clear();

    int newSize = 2;
    list1.subList(newSize, list1.size()).clear();
}

From source file:Main.java

public static void main(String[] args) {
    ArrayList<String> aList = new ArrayList<String>();

    aList.add("1");
    aList.add("2");
    aList.add("3");
    aList.add("4");
    aList.add("5");

    ListIterator<String> listIterator = aList.listIterator();
    listIterator.next();//from   ww w  .ja  va  2 s. c  o  m

    listIterator.set("100");
    for (String str : aList) {
        System.out.println(str);
    }
}

From source file:Main.java

public static void main(String[] args) {

    ArrayList<Integer> arrayList = new ArrayList<Integer>();

    arrayList.add(new Integer("3"));
    arrayList.add(new Integer("1"));
    arrayList.add(new Integer("8"));
    arrayList.add(new Integer("3"));
    arrayList.add(new Integer("5"));

    Object obj = Collections.max(arrayList);
    System.out.println(obj);//ww w.  j  av  a  2  s .  c  o  m
}

From source file:Main.java

public static void main(final String[] args) {
    List<String> stringCollection = new ArrayList<>();
    stringCollection.add("ddd2");
    stringCollection.add("aaa2");
    stringCollection.add("bbb1");
    stringCollection.add("aaa1");
    stringCollection.add("bbb3");
    stringCollection.add("ccc");
    stringCollection.add("bbb2");
    stringCollection.add("ddd1");

    stringCollection.stream().map(String::toUpperCase).sorted((a, b) -> b.compareTo(a))
            .forEach(System.out::println);
}

From source file:Main.java

public static void main(String[] argv) {

    List list = new ArrayList();
    int pos = 200;
    int align = TabStop.ALIGN_RIGHT;
    int leader = TabStop.LEAD_NONE;
    TabStop tstop = new TabStop(pos, align, leader);
    list.add(tstop);/*from   www .ja  v  a 2s.com*/

}

From source file:Main.java

public static void main(String[] args) {
    ArrayList<String> aList = new ArrayList<String>();

    aList.add("1");
    aList.add("2");
    aList.add("3");
    aList.add("4");
    aList.add("java2s.com");

    ListIterator<String> listIterator = aList.listIterator();
    System.out.println("Previous: " + listIterator.previousIndex());
    System.out.println("Next: " + listIterator.nextIndex());

    // advance current position by one using next method
    listIterator.next();/*from   ww w. j av a  2s  . c  o  m*/
    System.out.println("Previous: " + listIterator.previousIndex());
    System.out.println("Next: " + listIterator.nextIndex());
}

From source file:Main.java

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

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

    int count = list.size();
    System.out.println("Size of  List: " + count);

    // Print each element with its index
    for (int i = 0; i < count; i++) {
        String element = list.get(i);
        System.out.println("Index=" + i + ", Element=" + element);
    }//from  w ww .j  a v  a2 s.c  o m

    List<String> subList = list.subList(1, 3);
    System.out.println(subList);

    // Remove "CSS" from the list 
    list.remove("CSS"); // Same as list.remove(2);
    System.out.println(list);
}

From source file:Main.java

public static void main(String[] args) {
    ArrayList<String> arrayList = new ArrayList<String>();

    arrayList.add("1");
    arrayList.add("2");
    arrayList.add("3");
    arrayList.add("4");
    arrayList.add("5");

    List lst = arrayList.subList(1, 3);
    for (int i = 0; i < lst.size(); i++)
        System.out.println(lst.get(i));

    // remove one element from sub list
    Object obj = lst.remove(0);//from w  ww  .jav  a  2s .  c  o m
    System.out.println(obj + " is removed");

    for (String str : arrayList)
        System.out.println(str);
}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    List list = new ArrayList();

    Collections.shuffle(list);/*from  ww  w .  ja va 2 s.c  om*/
}

From source file:Main.java

public static void main(String[] args) {
    ArrayList<String> aList = new ArrayList<String>();

    aList.add("1");
    aList.add("2");
    aList.add("3");
    aList.add("4");
    aList.add("5");

    ListIterator<String> listIterator = aList.listIterator();
    System.out.println("Previous: " + listIterator.previousIndex());
    System.out.println("Next: " + listIterator.nextIndex());

    // advance current position by one using next method
    listIterator.next();/*  ww  w.  j av a2 s .com*/
    System.out.println("Previous: " + listIterator.previousIndex());
    System.out.println("Next: " + listIterator.nextIndex());
}