Convert Java Array to Set: Simple How-To Guide

If you're working with Java, you may find yourself needing to convert an array to a set. Fortunately, this is a relatively simple process that can be accomplished using a few lines of code.

  1. Step 1: Create an Array
  2. Step 2: Create a Set
  3. Step 3: Use the Set
  4. Conclusion

Step 1: Create an Array

The first step is to create an array that you want to convert to a set. For example, let's say you have an array of integers:

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

Step 2: Create a Set

Next, you'll need to create a set to hold the values of the array. You can create a set using the following code:

Set<Integer> intSet = new HashSet<Integer>(Arrays.asList(intArray));

This code creates a new HashSet and passes the array to the Arrays.asList() method, which converts the array to a list. The list is then passed to the constructor of the HashSet, which creates a new set with the same values as the list.

Step 3: Use the Set

Now that you have the set, you can use it like any other set in Java. For example, you can iterate over the set using a for-each loop:

for (Integer i : intSet) {

This code will print out the values of the set, which should be the same as the values of the original array.


Converting a Java array to a set is a simple process that can be accomplished using a few lines of code. By following the steps outlined in this guide, you should be able to easily convert any array to a set in Java.

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