Example usage for java.util List size

Introduction

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

Prototype

int size();

Source Link

Document

Returns the number of elements in this list.

Usage

From source file:Main.java

public static <T> void addAllInReverseOrder(Collection<T> destination, List<T> source) {
    for (int i = source.size() - 1; i >= 0; i--) {
        T object = source.get(i);//ww  w  .  j a  v a  2 s.com
        destination.add(object);
    }
}

From source file:Main.java

public static <T> void addAllInReverseOrder(List<T> destination, int index, List<T> source) {
    for (int i = source.size() - 1; i >= 0; i--) {
        T object = source.get(i);//from  w  ww.j a va  2  s .  c  o m
        destination.add(index, object);
    }
}

From source file:Main.java

/**
 * Returns the given list with the given element added at the end.
 * If it is an empty list, a new list is created. Otherwise, the given list is reused. 
 * This method is especially useful for dealing with immutable empty lists,
 * which are used to save memory.//from   ww w. j  ava 2 s  .c om
 */
public static <T> List<T> addOrNew(List<T> list, T element) {
    if (list.size() == 0)
        list = new ArrayList<T>(1);
    list.add(element);
    return list;
}

From source file:Main.java

public static boolean isNotEmpty(List<?> list) {
    if (null == list || list.size() == 0) {
        return false;
    }//w ww  .j ava 2 s.c  om
    return true;
}

From source file:Main.java

public static boolean hasEle(List images) {
    if (images == null || images.size() == 0) {
        return false;
    } else {//from ww w.  j ava  2s  .  c om
        return true;
    }
}

From source file:Main.java

public static <V> int getAdapterCount(List<V> mList) {
    return mList == null ? 0 : mList.size();
}

From source file:Main.java

public static <T> boolean listIsNull(List<T> list) {
    if (list == null || list.size() == 0) {
        return true;
    }// w w w. ja  va2s . com
    return false;

}

From source file:Main.java

public static boolean isListValid(List<?> list) {
    if (list != null && list.size() > 0) {
        return true;
    } else {/*from  w  w  w. jav  a2 s  .c  o  m*/
        return false;
    }
}

From source file:Main.java

public static Object last(List<Object> elements) {
    return elements.get(elements.size());
}

From source file:Main.java

public static long[] LongListTolongArray(List<Long> lg) {
    long[] l = new long[lg.size()];
    for (int i = 0; i < lg.size(); i++) {
        l[i] = lg.get(i).longValue();/* w w w.j  a  v a 2s .c  o m*/
    }
    return l;
}