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(Collection<? extends E> c) 

Source Link

Document

Constructs a list containing the elements of the specified collection, in the order they are returned by the collection's iterator.

Usage

From source file:MainClass.java

public static void main(String args[]) {
    List list = new ArrayList(Arrays.asList("a", "b", "c"));
    Iterator i = list.iterator();
    while (i.hasNext()) {
        System.out.println(i.next());
        list.add("Add");
    }/*from   w  w  w.  j  a va 2 s  .c  o  m*/
}

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From source file:Main.java

public static void main(String args[]) {

    List<String> srclst = new ArrayList<String>(5);
    List<String> destlst = new ArrayList<String>(10);

    // populate two lists
    srclst.add("tutorial");
    srclst.add("from");
    srclst.add("java2s.com");

    destlst.add("Java Tutorial");
    destlst.add("From");
    destlst.add("Java2s.com");

    // copy into dest list
    Collections.copy(destlst, srclst);

    System.out.println("Value of source list: " + srclst);
    System.out.println("Value of destination list: " + destlst);
}

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From source file:Main.java

public static void main(String[] args) {
    Vector vec = new Vector(8);
    List sublist = new ArrayList(10);

    vec.add(4);/*www.  ja v  a  2 s.  c om*/
    vec.add(3);
    vec.add(2);
    vec.add(1);
    vec.add(6);
    vec.add(7);
    vec.add(9);
    vec.add(5);

    sublist = vec.subList(2, 6);

    System.out.println(sublist);
}

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From source file:Main.java

public static void main(String args[]) {
    List<Integer> list = Arrays.asList(1, 2, 3);
    ArrayList<Integer> val = new ArrayList<Integer>(list);
    System.out.println(val.size());
}

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From source file:MainClass.java

public static void main(String args[]) throws Exception {
    String elements[] = { "A", "B", "C", "D" };

    List list = new ArrayList(Arrays.asList(elements));

    System.out.println(list);/*  w w w .j  a  va  2 s.c  o  m*/
}

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From source file:Main.java

public static void main(String args[]) {
    String a[] = { "a", "b", "c" };
    String b[] = { "d", "e" };

    List<String> list = new ArrayList<String>(Arrays.asList(a));
    list.addAll(Arrays.asList(b));

    Object[] c = list.toArray();//from   ww w  .  j  a  va 2 s. c o  m
    System.out.println(Arrays.toString(c));
}

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From source file:SearchTest.java

public static void main(String args[]) {
    String simpsons[] = { "Bart", "Hugo", "Lisa", "Marge", "Homer", "Maggie", "Roy" };

    // Convert to list
    ArrayList list = new ArrayList(Arrays.asList(simpsons));

    // Ensure list sorted
    Collections.sort(list);//from   www  . j  av  a 2 s .  c o  m
    System.out.println("Sorted list: [length: " + list.size() + "]");
    System.out.println(list);

    // Search for element in list
    int index = Collections.binarySearch(list, "Maggie");
    System.out.println("Found Maggie @ " + index);

    // Search for element not in list
    index = Collections.binarySearch(list, "Jimbo Jones");
    System.out.println("Didn't find Jimbo Jones @ " + index);

    // Insert
    int newIndex = -index - 1;
    list.add(newIndex, "Jimbo Jones");
    System.out.println("With Jimbo Jones added: [length: " + list.size() + "]");
    System.out.println(list);
}

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From source file:MainClass.java

public static void main(String[] args) {
    Queue queue = new LinkedList();
    queue.add("Hello");
    queue.add("World");
    List list = new ArrayList(queue);

    System.out.println(list);//from w w  w. j a  v  a2s . co m
}

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From source file:Main.java

public static void main(String[] args) {
    Integer[] intArray = { 1, 2, 3, 4, 5, 6, 7, 8 };
    List<Integer> listOfIntegers = new ArrayList<>(Arrays.asList(intArray));

    Comparator<Integer> normal = Integer::compare;
    Comparator<Integer> reversed = normal.reversed();
    Collections.sort(listOfIntegers, reversed);

    listOfIntegers.stream().forEach(e -> System.out.print(e + " "));
    System.out.println("");

}

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From source file:MainClass.java

public static void main(String args[]) {
    String str[] = { "B", "H", "L", "M", "I", "N", "R" };
    // Convert to list
    List list = new ArrayList(Arrays.asList(str));
    // Ensure list sorted
    Collections.sort(list);/* w ww.j a  va2 s.  com*/
    System.out.println("Sorted list: [length: " + list.size() + "]");
    System.out.println(list);
    // Search for element in list
    int index = Collections.binarySearch(list, "M");
    System.out.println("Found M @ " + index);
    // Search for element not in list
    index = Collections.binarySearch(list, "J");
    System.out.println("Didn't find J @ " + index);
    // Insert
    int newIndex = -index - 1;
    list.add(newIndex, "J");
    System.out.println("With J added: [length: " + list.size() + "]");
    System.out.println(list);
}

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