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

public static Node xPathEvalSingleNode(String content, String expression) throws XPathExpressionException {
    List<Node> lst = xPathEvalListNodes(content, expression);
    if (lst.size() > 0)
        return lst.get(0);
    return null;//from ww w .  ja  v a  2s. com
}

From source file:Main.java

public static <T> T firstElement(List<T> c) {
    if (isEmpty(c)) {
        return null;
    }//from  ww  w  .j  ava 2s  .c  o  m
    return c.get(0);
}

From source file:Main.java

public static byte[] toByteArray(List<Byte> list) {
    byte[] ret = new byte[list.size()];
    for (int i = 0; i < ret.length; i++)
        ret[i] = list.get(i);
    return ret;/*  ww  w .  ja  v  a  2s  .com*/
}

From source file:Main.java

public static Element getChildElement(Element parent, String tagName) {
    List children = getChildElements(parent, tagName);
    return children.isEmpty() ? null : (Element) children.get(0);
}

From source file:Main.java

public static <T> List<T> indexedSelection(List<T> in, int... indices) {
    ArrayList<T> res = new ArrayList<T>();
    for (int i : indices)
        res.add(in.get(i));
    return res;/*ww w.  j ava2  s  . co m*/
}

From source file:Main.java

public static <O> O getRandom(final Collection<O> pObjects) {
    if (pObjects != null && !pObjects.isEmpty()) {
        int r = Math.abs(random.nextInt() % pObjects.size());
        List<O> objects = !(pObjects instanceof List) ? new ArrayList<O>(pObjects) : (List<O>) pObjects;

        return objects.get(r);
    }/*  ww w.  j ava2 s. c o m*/
    return null;
}

From source file:Main.java

public static long[] toArray(List<Long> list) {
    long[] n = new long[list.size()];
    for (int i = 0; i < list.size(); i++) {
        n[i] = list.get(i);
    }/*from   w w w  . j  a  va 2  s.  c om*/
    return n;
}

From source file:Main.java

public static Map<String, Object> findFirstVisibleElement(List<HashMap<String, Object>> elements) {
    //TODO: Should do something more intelligent
    return (Map<String, Object>) elements.get(0);
}

From source file:Main.java

public static String getTopActivity2(Context ctx) {
    ActivityManager am = (ActivityManager) ctx.getSystemService(Context.ACTIVITY_SERVICE);
    List<ActivityManager.RunningTaskInfo> taskInfo = am.getRunningTasks(1);
    Log.d("topActivity", "CURRENT Activity ::" + taskInfo.get(0).topActivity.getClassName());
    ComponentName componentInfo = taskInfo.get(0).topActivity;
    return componentInfo.getPackageName();
}

From source file:Main.java

@SuppressWarnings("unchecked")
public static <T> T[] listToArray(List<T> list) {
    if (list == null) {
        return null;
    }//from   w w w . j  ava  2  s  . co  m

    T[] tArr = (T[]) Array.newInstance(list.get(0).getClass(), list.size());
    return list.toArray(tArr);
}