/* * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.apache.jena.atlas.lib; import java.lang.reflect.Array ; import java.util.Arrays ; /** Collection of array-related operations */ public class ArrayUtils { private ArrayUtils() {} /** Allocate an array of generic type T (initialized to null) */ @SuppressWarnings("unchecked") public static <T> T[] alloc(Class<T> cls, int n) { return (T[])Array.newInstance(cls, n); } /** Allocation space and copy */ public static <T> T[] copy(T[] array) { return copy(array, 0, array.length); } /** Allocation space and copy */ public static <T> T[] copy(T[] array, int start, int finish) { return Arrays.copyOfRange(array, start, finish) ; } }