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[]) {

    List<String> arlst = new ArrayList<String>();

    arlst.add("A");
    arlst.add("B");
    arlst.add("C");
    arlst.add("from java2s.com");

    // create typesafe view of the list
    List<String> tslst = Collections.checkedList(arlst, String.class);

    System.out.println(tslst);/*from w w  w . jav a 2s. c  o  m*/
}

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  v a2 s.com
    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);//from www . j a v a 2 s  .  c o  m
    System.out.println("Sorted List:  " + list);

}

From source file:Main.java

public static void main(String[] args) {
    // Create a list of strings
    List<String> names = new ArrayList<>();
    names.add("A");
    names.add("B");
    names.add("C");

    for (String name : names) {
        System.out.println(name);
    }//from  w ww  .  jav a2  s. c  o m

}

From source file:ArrayListExample.java

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

    al.add(new Integer(1));
    al.add(new Integer(2));
    al.add(new Integer(3));
    al.add(new Integer(4));
    al.add(new Integer(5));
    al.add(new Integer(6));
    al.add(new Integer(7));
    al.add(new Integer(8));
    al.add(new Integer(9));
    al.add(new Integer(10));

    al.set(5, new Integer(66));

    for (Iterator i = al.iterator(); i.hasNext();) {
        Integer integer = (Integer) i.next();
        System.out.println(integer);
    }/*from  www .  ja v  a 2s.c o m*/
}

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);//  www.j  av a2s .c  om
    System.out.println("List: " + list);

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

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

From source file:MainClass.java

public static void main(String[] a) {
    ArrayList<Employee> emps = new ArrayList<Employee>();

    Employee emp1 = new Employee("A", "G");
    Employee emp2 = new Employee("T", "A");
    Employee emp3 = new Employee("K", "J");

    emps.add(emp1);//from w  w  w  .  j ava2  s .  c om
    emps.add(emp2);
    emps.add(emp3);

    System.out.println(emps);

    emps.remove(emp2);

    System.out.println(emps);
}

From source file:Main.java

public static void main(String[] args) {
    List<String> arrayList = new ArrayList<String>();
    arrayList.add("1");
    arrayList.add("2");
    arrayList.add("3");

    Vector<String> v = new Vector<String>();
    v.add("4");// ww  w . j ava 2 s  . c  o  m
    v.add("5");

    // insert all elements of Vector to ArrayList at index 1
    arrayList.addAll(1, v);

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

From source file:Main.java

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

    arrlist.add("A");
    arrlist.add("B");
    arrlist.add("C");
    arrlist.add("from java2s.com");

    System.out.println(arrlist);/*from   www . j av a  2  s.co  m*/

    // add values to this collection
    boolean b = Collections.addAll(arrlist, "1", "2", "3");

    System.out.println(arrlist);
}

From source file:MainClass.java

public static void main(String args[]) throws Exception {
    // Create/fill collection
    List list = new ArrayList();
    list.add("A");
    list.add("B");
    list.add("C");
    System.out.println(list);//from   w  w w.  jav a  2 s. co  m
}