Example usage for java.util List toArray

Introduction

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

Prototype

<T> T[] toArray(T[] a);

Source Link

Document

Returns an array containing all of the elements in this list in proper sequence (from first to last element); the runtime type of the returned array is that of the specified array.

Usage

From source file:Main.java

@Nullable
public static String[] nullableArrayOfStrings(@Nullable List<String> list) {
    return list == null || list.isEmpty() ? null : list.toArray(new String[list.size()]);
}

From source file:Main.java

public static int[] toIntArray(List<Integer> list) {
    return toPrimitive(list.toArray(new Integer[0]));
}

From source file:Main.java

static public <T> CompletableFuture<List<T>> all(List<CompletableFuture<T>> cf) {
    return CompletableFuture.allOf(cf.toArray(new CompletableFuture[cf.size()]))
            .thenApply(v -> cf.stream().map(CompletableFuture::join).collect(toList()));
}

From source file:Main.java

@SuppressWarnings("unchecked")
public static <T> T[] intersect(Class<T> arrayType, T[] first, T[] second) {
    List<T> result = intersect(first, second);
    return result.toArray((T[]) Array.newInstance(arrayType, result.size()));
}

From source file:co.mafiagame.common.utils.ListToString.java

public static String toString(List<String> source) {
    return StringUtils.arrayToDelimitedString(source.toArray(new String[source.size()]), "  ");
}

From source file:Main.java

public static String[] toStrArray(final List<String> arrList) {
    final String[] r = new String[arrList.size()];
    arrList.toArray(r);
    return r;/*from w w  w .  java  2s  .c om*/
}

From source file:Main.java

public static List<Element> getChildrenWithTag(Element parent, String tag) {
    List<Element> list = getElementChildren(parent);
    for (Element e : list.toArray(new Element[0])) {
        if (!e.getTagName().equals(tag))
            list.remove(e);//from www. j av a2 s  . c o m
    }
    return list;
}

From source file:dtu.ds.warnme.app.ws.client.restful.utils.RestUtils.java

public static Header[] getHeadersAsArray(List<Header> headers) {
    return headers.toArray(new Header[headers.size()]);
}

From source file:Main.java

public static String[] getStringsFormat(List<String> mapValuesList) {
    final String[] arr = new String[mapValuesList.size()];
    mapValuesList.toArray(arr);
    Arrays.sort(arr);/*from w ww .  j  a v a 2 s .c  o  m*/
    return arr;
}

From source file:Main.java

/**
 * Copy the given Enumeration into a String array.
 * The Enumeration must contain String elements only.
 * @param enumeration the Enumeration to copy
 * @return the String array ({@code null} if the passed-in
 * Enumeration was {@code null})//ww  w  . j  a v a  2  s.com
 */
public static String[] toStringArray(Enumeration<String> enumeration) {
    if (enumeration == null) {
        return null;
    }
    List<String> list = Collections.list(enumeration);
    return list.toArray(new String[list.size()]);
}