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[]) {
    // create array list object       
    List<String> arrlist = new ArrayList<String>();

    // populate the list
    arrlist.add("A");
    arrlist.add("B");
    arrlist.add("from java2s.com");

    System.out.println("List elements before fill: " + arrlist);

    // fill the list
    Collections.fill(arrlist, "java2s.com");

    System.out.println("List elements after fill: " + arrlist);
}

From source file:Main.java

public static void main(String args[]) {
    // create array list object       
    List<String> arrlist = new ArrayList<String>();

    // populate the list
    arrlist.add("A");
    arrlist.add("B");
    arrlist.add("from java2s.com");

    // create Enumeration
    Enumeration<String> e = Collections.enumeration(arrlist);

    while (e.hasMoreElements()) {
        System.out.println("Value is: " + e.nextElement());
    }/* w  w  w .  j ava  2  s. c  o  m*/
}

From source file:Main.java

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

    List<Foo> foos = new ArrayList<>();

    IntStream.range(1, 4).forEach(num -> foos.add(new Foo("Foo" + num)));

    foos.forEach(f -> IntStream.range(1, 4).forEach(num -> f.bars.add(new Bar("Bar" + num + " <- " + f.name))));

    foos.stream().flatMap(f -> f.bars.stream()).forEach(b -> System.out.println(b.name));
}

From source file:Customer.java

public static void main(String[] args) {
    List<Customer> customers = new ArrayList<>();
    customers.add(new Customer("A", "a@gmail.com"));
    customers.add(new Customer("B", "b@gmail.com"));
    System.out.println("customers before email change - start");
    System.out.println(Customer.toString(customers));
    System.out.println("end");
    customers.get(1).setEmail("new.email@gmail.com");
    System.out.println("customers after email change - start");
    System.out.println(Customer.toString(customers));
    System.out.println("end");
}

From source file:Main.java

public static void main(String[] args) {
    // create array list
    List<Character> list = new ArrayList<Character>();

    // populate the list
    list.add('X');
    list.add('Y');

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

    Collection<Character> immutablelist = Collections.unmodifiableCollection(list);

    // try to modify the list
    immutablelist.add('Z');
}

From source file:Main.java

public static void main(String[] args) {
    // create vector object 
    List<String> vector = new ArrayList<String>();

    // populate the vector
    vector.add("1");
    vector.add("2");
    vector.add("3");
    vector.add("4");
    vector.add("from java2s.com");

    // create a synchronized view
    Collection<String> c = Collections.synchronizedCollection(vector);

    System.out.println("Sunchronized view is :" + c);
}

From source file:Main.java

public static void main(String[] args) {
    List<String> list = new ArrayList<>();
    for (int i = 0; i < 30; i++) {
        list.add("Hello, World " + i);
    }//from   w w w  .j a  va2 s.  c o m
    JScrollPane pane = new JScrollPane(new JList(list.toArray())) {
        @Override
        public Dimension getPreferredSize() {
            return new Dimension(200, 250);
        }
    };
    JOptionPane.showMessageDialog(null, pane);
}

From source file:Main.java

public static void main(String args[]) {
    // create array list object       
    List<String> arrlist = new ArrayList<String>();

    // populate the list
    arrlist.add("A");
    arrlist.add("B");
    arrlist.add("B");
    arrlist.add("B");
    arrlist.add("B");
    arrlist.add("from java2s.com");

    // check frequensy of 'B'
    int freq = Collections.frequency(arrlist, "B");

    System.out.println("Frequency of 'B' is: " + freq);
}

From source file:Main.java

public static void main(String[] args) {
    // create array list object
    List<String> arrlst = new ArrayList<String>();

    // populate the list
    arrlst.add("A");
    arrlst.add("B");
    arrlst.add("C");
    arrlst.add("D");
    arrlst.add("from java2s.com");

    System.out.println("The initial list is :" + arrlst);

    // reverse the list
    Collections.reverse(arrlst);/*from w  w  w.j a v a 2 s  .  c  o m*/

    System.out.println("The Reverse List is :" + arrlst);
}

From source file:Main.java

public static void main(String[] args) {
    // create array list
    List<Character> list = new ArrayList<Character>();

    // populate the list
    list.add('X');
    list.add('Y');

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

    // make the list unmodifiable
    List<Character> immutablelist = Collections.unmodifiableList(list);

    // try to modify the list
    immutablelist.add('Z');
}