Class ArrayUtils

src/main/java/org/apache/commons/lang3/ArrayUtils.java:61–9690

Operations on arrays, primitive arrays (like int[]) and primitive wrapper arrays (like Integer[]). This class tries to handle null input gracefully. An exception will not be thrown for a null array input. However, an Object array that contains a null eleme

 * @since 2.0
 */
public class ArrayUtils {

    /**
     * Bridge class to {@link Math} methods for testing purposes.
     */
    static class MathBridge {
        static int addExact(final int a, final int b) {
            return Math.addExact(a, b);
        }
    }

    /**
     * An empty immutable {@code boolean} array.
     */
    public static final boolean[] EMPTY_BOOLEAN_ARRAY = {};

    /**
     * An empty immutable {@link Boolean} array.
     */
    public static final Boolean[] EMPTY_BOOLEAN_OBJECT_ARRAY = {};

    /**
     * An empty immutable {@code byte} array.
     */
    public static final byte[] EMPTY_BYTE_ARRAY = {};

    /**
     * An empty immutable {@link Byte} array.
     */
    public static final Byte[] EMPTY_BYTE_OBJECT_ARRAY = {};

    /**
     * An empty immutable {@code char} array.
     */
    public static final char[] EMPTY_CHAR_ARRAY = {};

    /**
     * An empty immutable {@link Character} array.
     */
    public static final Character[] EMPTY_CHARACTER_OBJECT_ARRAY = {};

    /**
     * An empty immutable {@link Class} array.
     */
    public static final Class<?>[] EMPTY_CLASS_ARRAY = {};

    /**
     * An empty immutable {@code double} array.
     */
    public static final double[] EMPTY_DOUBLE_ARRAY = {};

    /**
     * An empty immutable {@link Double} array.
     */
    public static final Double[] EMPTY_DOUBLE_OBJECT_ARRAY = {};

    /**
     * An empty immutable {@link Field} array.