What are the methods for converting a set to a list in Java?

2 years ago
Sophia Anderson
1 minute

In Java, we can convert a Set to a List using the following methods:

  1. Utilizing constructor functions:
Set<String> set = new HashSet<>();
List<String> list = new ArrayList<>(set);
  1. Utilize the addAll() method:
Set<String> set = new HashSet<>();
List<String> list = new ArrayList<>();
list.addAll(set);
  1. By using the Stream API:
Set<String> set = new HashSet<>();
List<String> list = set.stream().collect(Collectors.toList());
  1. Use the toArray() method:
Set<String> set = new HashSet<>();
List<String> list = new ArrayList<>(Arrays.asList(set.toArray(new String[0])));

Here are some common methods, choose the appropriate one to convert from a Set to a List based on your specific needs.

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