Many resources are needed to download a project. Please understand that we have to compensate our server costs. Thank you in advance. Project price only 1 $
You can buy this project and download/modify it how often you want.
/*
* Copyright 2017 Michael Rapp
*
* Licensed 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 de.mrapp.util;
import org.jetbrains.annotations.NotNull;
import static de.mrapp.util.Condition.ensureNotNull;
/**
* An utility class, which provides static methods, which allow to handle arrays.
*
* @author Michael Rapp
* @since 1.0.0
*/
public final class ArrayUtil {
/**
* Creates a new utility class, which provides static methods, which allow to handle arrays.
*/
private ArrayUtil() {
}
/**
* Returns the index of the first item of an array, which equals a specific boolean value.
*
* @param array The array, which should be checked, as a {@link Boolean} array. The array may
* not be null
* @param value The value, which should be checked, as a {@link Boolean} value
* @return The index of the first item, which equals the given boolean value, as an {@link
* Integer} value or -1, if no item of the array equals the value
*/
public static int indexOf(@NotNull final boolean[] array, final boolean value) {
ensureNotNull(array, "The array may not be null");
for (int i = 0; i < array.length; i++) {
if (array[i] == value) {
return i;
}
}
return -1;
}
/**
* Returns the index of the last item of an array, which equals a specific boolean value.
*
* @param array The array, which should be checked, as a {@link Boolean} array. The array may
* not be null
* @param value The value, which should be checked, as a {@link Boolean} value
* @return The index of the last item, which equals the given boolean value, as an {@link
* Integer} value or -1, if no item of the array equals the value
*/
public static int lastIndexOf(@NotNull final boolean[] array, final boolean value) {
ensureNotNull(array, "The array may not be null");
for (int i = array.length - 1; i >= 0; i--) {
if (array[i] == value) {
return i;
}
}
return -1;
}
/**
* Returns, whether an array contains a specific boolean value, or not.
*
* @param array The array, which should be checked, as a {@link Boolean} array. The array may
* not be null
* @param value The value, which should be checked, as a {@link Boolean} value
* @return True, if the array contains the given boolean value, false otherwise
*/
public static boolean contains(@NotNull final boolean[] array, final boolean value) {
return indexOf(array, value) != -1;
}
}
