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 boolean isStackResumed(Context context) {
    ActivityManager manager = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);
    List<ActivityManager.RunningTaskInfo> runningTaskInfos = manager.getRunningTasks(1);
    ActivityManager.RunningTaskInfo runningTaskInfo = runningTaskInfos.get(0);
    return runningTaskInfo.numActivities > 1;
}

From source file:Main.java

public static <T> T last(List<T> list) {
    if (list == null || list.isEmpty()) {
        return null;
    }//from  ww  w  . ja v  a2 s . c om
    return list.get(list.size() - 1);
}

From source file:Main.java

public static long[] toLongArray(List<Long> arrList) {
    long[] r = new long[arrList.size()];
    for (int i = 0; i < arrList.size(); i++) {
        r[i] = ((Long) arrList.get(i)).longValue();
    }/*from  w  w  w.  ja  v  a2s . com*/
    return r;
}

From source file:Main.java

public static double[] toDoubleArray(List<Double> list) {
    double[] result = new double[list.size()];
    for (int i = 0; i < list.size(); ++i) {
        result[i] = list.get(i);
    }/*from www.ja va  2s .co m*/
    return result;
}

From source file:Main.java

public static <T> void removeDuplicate(List<T> list) {
    for (int i = 0; i < list.size(); i++) {
        for (int j = i + 1; j < list.size(); j++) {
            if (list.get(i).equals(list.get(j))) {
                list.remove(j);//from w w  w  .  j  a  va 2 s  .  c  o m
            }
        }
    }
}

From source file:Main.java

public static double[] listToDoubleArray(List<Double> list) {
    double[] result = new double[list.size()];
    for (int i = 0; i < list.size(); i++) {
        result[i] = list.get(i);
    }/*w ww .ja v  a2s. c o  m*/
    return result;
}

From source file:Main.java

/**
 * Get child element by classname/*from www . ja va2s.c o  m*/
 *
 * @param ele parent element
 * @param name of elements to find
 */
public static Element getElementByClass(Element ele, String name) {
    List<Element> list = getElementsByClass(ele, name);
    if (list.size() > 0)
        return list.get(0);
    return null;
}

From source file:Main.java

/**
 * Returns the first element of a list or null if the list
 * is null or empty.//  w w  w  .j a va2 s. c  o  m
 * 
 * @param l the list in which to find the first element
 * @return Object the first element of the list
 */
public static Object getFirstElement(List l) {
    // Return null if list is null or empty
    if (l == null || l.isEmpty())
        return null;

    return l.get(0);
}

From source file:Main.java

public static String[] toArray(List<String> list) {
    String[] result = new String[list.size()];
    for (int i = 0; i < list.size(); ++i) {
        result[i] = list.get(i);
    }//w ww.  j  av a2  s .c o  m
    return result;
}

From source file:Main.java

public static <T> List<Object> listGeneralToObject(List<T> list) {
    List<Object> retList = new ArrayList<Object>();
    for (int i = 0; i < list.size(); i++) {
        retList.add(list.get(i));
    }//  ww  w.  j a va 2  s .  c o m
    return retList;
}