Example usage for java.util List get

Introduction

In this page you can find the example usage for java.util List get.

Prototype

E get(int index);

Source Link

Document

Returns the element at the specified position in this list.

Usage

From source file:Main.java

private static <T> boolean equlWithoutComparator(List<T> l1, List<T> l2) {
    final int n1 = l1.size();
    for (int i = 0; i < n1; i++) {
        T e1 = l1.get(i);
        T e2 = l2.get(i);//www . j  a  v  a  2  s .c o m
        if (e1 == null) {
            if (e2 != null) {
                return false;
            }
        } else if (!e1.equals(e2)) {
            return false;
        }
    }
    return true;
}

From source file:Main.java

/**
 * Returns the first element of the collection.
 * /*  w  ww.j  av  a 2  s. com*/
 * @param <T>
 *            the element type
 * @param iterable
 *            the collection
 * @return the first element or null if the list is empty
 */
public static <T> T first(Iterable<T> iterable) {
    if (iterable instanceof Deque<?>)
        return ((Deque<T>) iterable).getFirst();
    if (iterable instanceof List<?>) {
        List<T> list = (List<T>) iterable;
        return list.isEmpty() ? null : list.get(0);
    }
    Iterator<T> iterator = iterable.iterator();
    return iterator.hasNext() ? iterator.next() : null;
}

From source file:Main.java

/**
 * Determines if all entries in a list are equal.
 * //  w  ww. jav a 2s  .c  o  m
 * @param list
 *            the list to check equal objects.
 * @return true, if all objects are equal; false otherwise.
 */
public static <T> boolean allEqual(List<T> list) {
    boolean allEqual = true;

    for (int i = 0; i < list.size(); i++) {
        if (!list.get(0).equals(list.get(i))) {
            allEqual = false;
            break;
        }
    }

    return allEqual;
}

From source file:Main.java

static public int[] ToInts(List<Integer> list) {
    int[] ints = new int[list.size()];
    for (int i = 0; i < list.size(); i++) {
        ints[i] = list.get(i);
    }//from   ww  w. ja  va  2s .c  o m
    return ints;
}

From source file:Main.java

/**
 *  Append the given list of children Elements to the given Element.
 *
 *  @param element The parent element./* w  ww.ja v a2  s  .  com*/
 *  @param children The list of children.
 */
public static void addChildren(Element element, List children) {
    for (int i = 0; i < children.size(); i++) {
        element.appendChild((Element) children.get(i));
    }
}

From source file:Main.java

public static boolean judge(List<String> list, String dir) {
    boolean result = false;
    for (int i = 0; i < list.size(); i++) {
        if (list.get(i).equals(dir)) {
            result = true;//from  w ww . j ava 2  s  .c  o  m
            return result;
        }
    }
    return result;
}

From source file:Main.java

public static String getTopActivity(Activity context) {
    ActivityManager manager = (ActivityManager) context.getSystemService(Activity.ACTIVITY_SERVICE);
    List<RunningTaskInfo> runningTaskInfos = manager.getRunningTasks(1);

    if (runningTaskInfos != null)
        return (runningTaskInfos.get(0).topActivity).getShortClassName();
    else//from ww w.j  a va  2 s . co m
        return null;
}

From source file:Main.java

public static <T> List<T> limit(List<T> source, int size) {
    List<T> dest = new ArrayList<>();
    for (int i = 0; i < size; i++) {
        dest.add(source.get(i));
    }/*from  w  w  w . ja  v a  2s  .  c o m*/
    return dest;
}

From source file:Main.java

public static boolean[] toPrimitiveBooleanArray(List<Boolean> list) {
    boolean[] res = new boolean[list.size()];
    for (int i = 0; i < list.size(); i++)
        res[i] = list.get(i);
    return res;/*from   w w  w .j  a  v a 2 s . c  o  m*/
}

From source file:org.zht.framework.validate.ValidateHandler.java

public static ValidateResult handle(BindingResult result) {
    ValidateResult retVal = new ValidateResult();
    if (result.hasErrors()) {
        List<ObjectError> list = result.getAllErrors();
        ObjectError oe = list.get(0);
        retVal.setMessage(oe.getDefaultMessage());
        retVal.setResult(false);//from   w w  w  . j a v a 2 s  .com
    } else {
        retVal.setResult(true);
    }
    return retVal;
}