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

@SuppressWarnings("unchecked")
public static <T> T[] toArray(List<T> list, Class<T> componentType) {
    return list.toArray((T[]) Array.newInstance(componentType, list.size()));
}

From source file:net.eledge.android.toolkit.StringArrayUtils.java

public static String[] toArray(List<String> list) {
    if (list != null) {
        return list.toArray(new String[list.size()]);
    }// w  w  w  .  j a  v a 2 s. com
    return new String[] {};
}

From source file:Main.java

public static List[] cartesianProduct(List left, List[] right) {
    if (right.length == 0) {
        return (List[]) left.toArray(new List[] {});
    }//from www  .j av a 2 s  . c  o  m
    List result = new ArrayList();
    for (Object elementLeft : left) {

        for (Object elementRight : right[0]) {
            List resultElement = new ArrayList();
            if (elementLeft instanceof List) {
                resultElement = new ArrayList((List) elementLeft);
            } else {
                resultElement.add(elementLeft);
            }
            resultElement.add(elementRight);
            result.add(resultElement);
        }

    }
    return cartesianProduct(result, Arrays.asList(right).subList(1, right.length).toArray(new List[] {}));
}

From source file:ddf.security.permission.Permissions.java

public static Map<String, Set<String>> parsePermissionsFromString(List<String> permStrings) {
    return parsePermissionsFromString(permStrings.toArray(new String[permStrings.size()]));
}

From source file:Main.java

/**
 * Returns an array of aList items in the same order than the {@link List}.
 *
 * @param aList/*from ww w . ja  v  a2  s.  co  m*/
 *         {@link List} to transform.
 *
 * @return {@link T[]} array of aList items in the same order than the {@link List}.
 *
 * @since 1
 */
public static <T> T[] toArray(List<T> aList) {
    T[] result = (T[]) Array.newInstance(aList.get(0).getClass(), 2);
    result = aList.toArray(result);
    return result;
}

From source file:Main.java

@SuppressWarnings("unchecked")
public static <T> T[] toArray(List<?> list, Class<T> type) {
    T[] array = (T[]) Array.newInstance(type, list.size());
    return list.toArray(array);
}

From source file:de.weltraumschaf.registermachine.convert.ByteArray.java

/**
 * Converts a list of boxed bytes to an array of native bytes.
 *
 * @param original list of boxed bytes/* ww w.j  a  v  a 2 s .  c o  m*/
 * @return array of native bytes
 */
public static byte[] convertToNativeArray(final List<Byte> original) {
    final List<Byte> in = Lists.newArrayList(original);
    return ByteArray.toNative(in.toArray(new Byte[in.size()]));
}

From source file:com.navercorp.pinpoint.common.server.util.InetAddressUtils.java

public static InetAddress[] toInetAddressArray(List<String> addressList) {
    final List<InetAddress> inetList = InetAddressUtils.toInetAddressList(addressList);
    return inetList.toArray(new InetAddress[0]);
}

From source file:common.Util.java

public static String join(List<String> strs, String sep) {
    return join(strs.toArray(new String[strs.size()]), sep);
}

From source file:com.github.jmnarloch.spring.jaxrs.client.support.JaxRsClientRegistrar.java

/**
 * Converts the list into the array./*from w  w w .j  a  va2  s  .c om*/
 *
 * @param list the list
 * @return the array
 */
private static String[] toArray(List<String> list) {
    return list.toArray(new String[list.size()]);
}