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[] args) {
    ArrayList<String> arrayList = new ArrayList<String>();

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

    arrayList.set(1, "REPLACED ELEMENT");
    for (String str : arrayList) {
        System.out.println(str);//  w  w  w . ja v  a  2s .  c  om
    }
}

From source file:Test.java

public static void main(String[] args) {

    List arrayList = new ArrayList<>();
    //List<String> arrayList = new ArrayList<>();
    arrayList.add("First");
    arrayList.add("Second");

}

From source file:Main.java

public static void main(String[] argv) {

    List<Number> numlist = new ArrayList<Number>();

    numlist.add(new Integer(123));
    numlist.add(new Float(123));
}

From source file:Main.java

public static void main(String[] args) {
    List<String> size = new ArrayList<String>();
    size = deleteAll(size, "value");
}

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");

    System.out.println(arrayList.size());

    arrayList.clear();/*w ww .jav  a  2 s.c  o  m*/

    System.out.println(arrayList.size());

}

From source file:Main.java

public static void main(String[] argv) {
    List<String> mascots = new ArrayList<>();
    mascots.add("duke");
    mascots.add("juggy");

    String actual = mascots.stream().reduce((t, u) -> t + "," + u).get();
    System.out.println(actual);/*from   w  ww. jav  a  2  s .  co  m*/
}

From source file:Main.java

public static void main(String[] args) {
    List<Integer> l = new ArrayList<Integer>();
    l.add(3);//www  .  j  a  v a  2  s.  c  o  m
    l.add(2);
    l.add(1);
    l.add(4);
    l.removeIf(i -> {
        return i >= 3;//No return statement will break compilation
    });
    System.out.println(l);
}

From source file:Main.java

public static void main(String[] args) {
    ArrayList<String> list = new ArrayList<>();
    list.add("A");
    list.add("B");
    list.add("C");
    list.add("D");
    list.add("E");
    list.add("F");
    list.add("G");
    list.add("H");

    System.out.println(list);//from ww w.  j ava  2  s  .c  o  m

    while (!list.isEmpty()) {
        long index = Math.round(Math.floor(Math.random() * list.size()));
        System.out.println("Name " + list.get((int) index));
        list.remove((int) index);
    }

}

From source file:Main.java

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

    arrlist.add(1);//from  w  w w . ja v  a  2 s. c  o m
    arrlist.add(2);
    arrlist.add(3);
    arrlist.add(4);
    arrlist.add(5);

    ArrayList<Integer> arrlist2 = new ArrayList<Integer>();
    arrlist2.add(1);
    arrlist2.add(2);
    arrlist2.add(3);

    arrlist.removeAll(arrlist2);

    System.out.println(arrlist);

}

From source file:Main.java

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

    arrlist.add(1);//from   w  w  w  . java  2  s . c o m
    arrlist.add(2);
    arrlist.add(3);
    arrlist.add(4);
    arrlist.add(5);

    ArrayList<Integer> arrlist2 = new ArrayList<Integer>();
    arrlist2.add(1);
    arrlist2.add(2);
    arrlist2.add(3);

    arrlist.retainAll(arrlist2);

    System.out.println(arrlist);

}