How to convert object to list in Java?
24th October 2021
Collections.singletonList[object] method returns an immutable list containing only the specified object. The returned list is serializable.
//Assuming that your object is a valid List object, you can use: Collections.singletonList[object] -- Returns an immutable list containing only the specified object.
List list = Collections.singletonList[object];
Stream.collect[Collectors.toList[]] can be used to collect Stream elements into a list. We can leverage this to convert object to a list.
//If you want it in a specific datatype, use Stream.of[object]:
List list = Stream.of[object].map[Object::toString].collect[Collectors.toList[]]
//Similarly, you can change the method in the map to convert to the datatype you need.
//Example
// Accumulate names into a List
List list = people.stream[].map[Person::getName].collect[Collectors.toList[]];
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