Example usage for java.util ArrayList add

Introduction

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

Prototype

public boolean add(E e)

Source Link

Document

Appends the specified element to the end of this list.

Usage

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");

    for (String str : aList) {
        System.out.println(str);/*ww  w .j a v a 2  s .c om*/
    }
    Iterator itr = aList.iterator();

    // remove 2 from ArrayList using Iterator's remove method.

    String strElement = "";

    while (itr.hasNext()) {
        strElement = (String) itr.next();
        if (strElement.equals("2")) {
            itr.remove();
            break;
        }
    }
    for (String str : aList) {
        System.out.println(str);
    }
}

From source file:Main.java

public static void main(String[] args) {

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

    arrlist.add(20);
    arrlist.add(25);//from w  w w  . j  a va  2 s  .co  m
    arrlist.add(10);
    arrlist.add(15);

    System.out.println(arrlist);

    // list contains element 10
    boolean retval = arrlist.contains(10);

    if (retval == true) {
        System.out.println("element 10 is contained in the list");
    } else {
        System.out.println("element 10 is not contained in the list");
    }

    // list does not contain element 30
    boolean retval2 = arrlist.contains(30);

    if (retval2 == true) {
        System.out.println("element 30 is contained in the list");
    } else {
        System.out.println("element 30 is not contained in the list");
    }
}

From source file:IteratorDemo.java

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

    al.add("C");
    al.add("A");/*from w w  w.  j ava2 s  . c  o  m*/
    al.add("E");
    al.add("B");
    al.add("D");
    al.add("F");

    Iterator<String> itr = al.iterator();
    while (itr.hasNext()) {
        String element = itr.next();
        System.out.print(element + " ");
    }

    ListIterator<String> litr = al.listIterator();
    while (litr.hasNext()) {
        String element = litr.next();
        litr.set(element + "+");
    }

    itr = al.iterator();
    while (itr.hasNext()) {
        String element = itr.next();
        System.out.print(element + " ");
    }

    while (litr.hasPrevious()) {
        String element = litr.previous();
        System.out.print(element + " ");
    }
}

From source file:MainClass.java

public static void main(String[] args) throws Exception {
    Document document = new Document();
    PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream("2.pdf"));
    writer.setPdfVersion(PdfWriter.VERSION_1_5);

    document.open();// w w  w  .  j a v  a2 s.c o m

    PdfContentByte cb = writer.getDirectContent();

    PdfLayer radiogroup = PdfLayer.createTitle("Radio Group", writer);
    PdfLayer radio1 = new PdfLayer("Radiogroup: layer 1", writer);
    radio1.setOn(true);
    PdfLayer radio2 = new PdfLayer("Radiogroup: layer 2", writer);
    radio2.setOn(false);
    PdfLayer radio3 = new PdfLayer("Radiogroup: layer 3", writer);
    radio3.setOn(false);
    radiogroup.addChild(radio1);
    radiogroup.addChild(radio2);
    radiogroup.addChild(radio3);
    ArrayList options = new ArrayList();
    options.add(radio1);
    options.add(radio2);
    options.add(radio3);
    writer.addOCGRadioGroup(options);
    cb.beginLayer(radio1);
    ColumnText.showTextAligned(cb, Element.ALIGN_LEFT, new Phrase("option 1"), 50, 600, 0);
    cb.endLayer();
    cb.beginLayer(radio2);
    ColumnText.showTextAligned(cb, Element.ALIGN_LEFT, new Phrase("option 2"), 50, 575, 0);
    cb.endLayer();
    cb.beginLayer(radio3);
    ColumnText.showTextAligned(cb, Element.ALIGN_LEFT, new Phrase("option 3"), 50, 550, 0);
    cb.endLayer();

    document.close();
}

From source file:ArrayListComboBoxModel.java

public static void main(String args[]) {
    JFrame frame = new JFrame("ArrayListComboBoxModel");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    ArrayList<Object> arrayList = new ArrayList<Object>();
    arrayList.add("A");
    arrayList.add("B");
    arrayList.add("C");
    ArrayListComboBoxModel model = new ArrayListComboBoxModel(arrayList);

    JComboBox comboBox = new JComboBox(model);

    frame.add(comboBox, BorderLayout.NORTH);
    frame.setSize(300, 225);/*w w  w .j a  va  2s.  c  o m*/
    frame.setVisible(true);
}

From source file:MainClass.java

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

    al.add("C");
    al.add("A");/*  w w w.  ja  va  2  s .  com*/
    al.add("E");
    al.add("B");
    al.add("D");
    al.add("F");

    System.out.print("Original contents of al: ");
    Iterator<String> itr = al.iterator();
    while (itr.hasNext()) {
        String element = itr.next();
        System.out.print(element + " ");
    }
    System.out.println();

    ListIterator<String> litr = al.listIterator();
    while (litr.hasNext()) {
        String element = litr.next();
        litr.set(element + "+");
    }

    // Now, display the list backwards.
    System.out.print("Modified list backwards: ");
    while (litr.hasPrevious()) {
        String element = litr.previous();
        System.out.print(element + " ");
    }
}

From source file:contractEditor.SPConfFileEditor.java

public static void main(String[] args) {

    JSONObject obj = new JSONObject();
    ArrayList fileList = new ArrayList();

    fileList.add("confSP" + File.separator + "HOST1.json");
    fileList.add("confSP" + File.separator + "HOST2.json");
    fileList.add("confSP" + File.separator + "HOST3.json");
    fileList.add("confSP" + File.separator + "HOST4.json");

    obj.put("contract_list_of_SP", fileList);

    try {/*w  ww.j  a  va 2s.  c  o  m*/

        FileWriter file = new FileWriter("confSP" + File.separator + "contractFileList.json");
        file.write(obj.toJSONString());
        file.flush();
        file.close();

    } catch (IOException e) {
        e.printStackTrace();
    }

    System.out.print(obj);

}

From source file:MainClass.java

public static void main(String[] av) {

    String[] stringArray = new String[] { "c", "e", "a", "k" };

    ArrayList<String> list = new ArrayList<String>();
    for (String s : stringArray) {
        list.add(s);
    }// w  ww.  j av a  2  s  . co  m
    Collections.sort(list, String.CASE_INSENSITIVE_ORDER);

    for (String s : list) {
        System.out.println(s);
    }
}

From source file:MainClass.java

public static void main(String[] a) {
    ArrayList<Employee> emps = new ArrayList<Employee>();
    emps.add(new Employee("A", "G"));
    emps.add(new Employee("T", "A"));
    emps.add(new Employee("K", "J"));

    System.out.println(emps);//from   w ww .j a  v a2  s . c om

    Employee e = emps.get(1);
    e.setLastName("new");

    System.out.println(emps);
}

From source file:Main.java

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

    list.add("Monday");
    list.add("Tuesdag");
    list.add("Wednesday");
    list.add("Thursday");
    list.add("Friday");
    list.add("Saturday");
    list.add("Sunday");

    Iterator<String> iterator = null;

    iterator = list.iterator();/*  ww  w  . j  a v a2 s.  c o m*/
    while (iterator.hasNext()) {
        String element = iterator.next();
        System.out.println(element);
    }

    for (iterator = list.iterator(); iterator.hasNext();) {
        String element = iterator.next();
        System.out.println(element);
    }

    for (String element : list) {
        System.out.println(element);
    }
}