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How Can I Randomly Select an Element from an Integer Array in Java?

Dec 01, 2024 am 04:23 AM

How Can I Randomly Select an Element from an Integer Array in Java?

Randomly Selecting Elements from an Array

Many programming tasks require the random selection of elements from a collection. This article presents a solution to randomly pick an element from an integer array.

Consider the following example:

int[] array = {1, 2, 3};
How can we randomly select a number from this array?
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To address this problem, we provide a Java implementation that leverages the Random class to generate a random index within the array and return the element at that index:

public static int getRandom(int[] array) {
    int rnd = new Random().nextInt(array.length);
    return array[rnd];
}
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