How Can I Efficiently Remove an Element from a Java Array?

Removing an Array Element Efficiently

In Java, removing an element from an array can be achieved using a simple loop. However, this approach can be inefficient for large arrays, as it requires shifting all subsequent elements to fill the gap created by the removed element.

Optimized Removal Using ArrayUtils

For faster and more elegant element removal, consider employing the ArrayUtils class from the Apache Commons Lang library. This class provides the removeElement method, which efficiently removes the specified element from an array by manipulating the internal array structure.

Example Usage:

import org.apache.commons.lang3.ArrayUtils;

int[] array = {1, 2, 3, 4, 5};
int elementToRemove = 3;

array = ArrayUtils.removeElement(array, elementToRemove);

Benefits of ArrayUtils:

• Efficient: Avoids array shifting and reordering, resulting in faster removal for large arrays.
• Robust: Handles cases where the element to be removed is not present in the array, preventing unexpected errors.
• Simple and convenient syntax, adding clarity and conciseness to your code.

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