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| <pre>public class <a href="../../../../../../src-html/org/apache/logging/log4j/core/util/ArrayUtils.html#line.25">ArrayUtils</a> |
| extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></pre> |
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| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../org/apache/logging/log4j/core/util/ArrayUtils.html#ArrayUtils--">ArrayUtils</a></span>()</code> </td> |
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| <td class="colFirst"><code>static int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/logging/log4j/core/util/ArrayUtils.html#getLength-java.lang.Object-">getLength</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a> array)</code> |
| <div class="block">Returns the length of the specified array.</div> |
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| <td class="colFirst"><code>static <T> T[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/logging/log4j/core/util/ArrayUtils.html#remove-T:A-int-">remove</a></span>(T[] array, |
| int index)</code> |
| <div class="block">Removes the element at the specified position from the specified array.</div> |
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| <h4>ArrayUtils</h4> |
| <pre>public <a href="../../../../../../src-html/org/apache/logging/log4j/core/util/ArrayUtils.html#line.25">ArrayUtils</a>()</pre> |
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| <h4>getLength</h4> |
| <pre>public static int <a href="../../../../../../src-html/org/apache/logging/log4j/core/util/ArrayUtils.html#line.47">getLength</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a> array)</pre> |
| <div class="block"><p>Returns the length of the specified array. |
| This method can deal with <code>Object</code> arrays and with primitive arrays.</p> |
| |
| <p>If the input array is <code>null</code>, <code>0</code> is returned.</p> |
| |
| <pre> |
| ArrayUtils.getLength(null) = 0 |
| ArrayUtils.getLength([]) = 0 |
| ArrayUtils.getLength([null]) = 1 |
| ArrayUtils.getLength([true, false]) = 2 |
| ArrayUtils.getLength([1, 2, 3]) = 3 |
| ArrayUtils.getLength(["a", "b", "c"]) = 3 |
| </pre></div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>array</code> - the array to retrieve the length from, may be null</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The length of the array, or <code>0</code> if the array is <code>null</code></dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</a></code> - if the object argument is not an array.</dd> |
| <dt><span class="simpleTagLabel">Since:</span></dt> |
| <dd>2.1</dd> |
| </dl> |
| </li> |
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| <h4>remove</h4> |
| <pre>public static <T> T[] <a href="../../../../../../src-html/org/apache/logging/log4j/core/util/ArrayUtils.html#line.120">remove</a>(T[] array, |
| int index)</pre> |
| <div class="block"><p>Removes the element at the specified position from the specified array. |
| All subsequent elements are shifted to the left (subtracts one from |
| their indices).</p> |
| |
| <p>This method returns a new array with the same elements of the input |
| array except the element on the specified position. The component |
| type of the returned array is always the same as that of the input |
| array.</p> |
| |
| <p>If the input array is <code>null</code>, an IndexOutOfBoundsException |
| will be thrown, because in that case no valid index can be specified.</p> |
| |
| <pre> |
| ArrayUtils.remove(["a"], 0) = [] |
| ArrayUtils.remove(["a", "b"], 0) = ["b"] |
| ArrayUtils.remove(["a", "b"], 1) = ["a"] |
| ArrayUtils.remove(["a", "b", "c"], 1) = ["a", "c"] |
| </pre></div> |
| <dl> |
| <dt><span class="paramLabel">Type Parameters:</span></dt> |
| <dd><code>T</code> - the component type of the array</dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>array</code> - the array to remove the element from, may not be <code>null</code></dd> |
| <dd><code>index</code> - the position of the element to be removed</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>A new array containing the existing elements except the element |
| at the specified position.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IndexOutOfBoundsException.html?is-external=true" title="class or interface in java.lang">IndexOutOfBoundsException</a></code> - if the index is out of range |
| (index < 0 || index >= array.length), or if the array is <code>null</code>.</dd> |
| <dt><span class="simpleTagLabel">Since:</span></dt> |
| <dd>2.1</dd> |
| </dl> |
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