we can Remove Duplicates from a string Array using a combination of a Set and an array. A Set is a collection that does not allow duplicate elements, so by adding the elements of the array to a Set, any duplicates will be automatically removed.
Here is an example of how to remove duplicates from a string array:
String[] array = {"a", "b", "c", "a", "d", "b"};
Set
String[] uniqueArray = set.toArray(new String[set.size()]);
In this example, we first create a string array with duplicate values. We then create a new HashSet and pass the array to its constructor, which automatically removes any duplicates. We then use the toArray() method of the Set to convert it back to an array, which now only contains unique values.
It's important to note that the order of the elements in the array is not guaranteed to be preserved after removing duplicates using this method. If you want to maintain the order of the elements in the array, you can use a List or a LinkedHashSet instead of a HashSet.
Removing duplicates from a string array in Java can be achieved by converting the array to a Set, which automatically removes any duplicates, and then converting it back to an array. This method is efficient and easy to implement, and it can be used to remove duplicates from any type of array.
In Java 8, can use the Stream API to remove duplicates from a string array. The Stream API provides a functional and declarative way of processing collections of data, including arrays. Here is an example of how to use the Stream API to remove duplicates from a string array:
String[] array = {"a", "b", "c", "a", "d", "b"};
String[] uniqueArray = Arrays.stream(array)
.distinct()
.toArray(String[]::new);
In this example, we first create a string array with duplicate values. We then create a stream of the array using the Arrays.stream() method, and then use the distinct() method to remove the duplicates. Finally, we use the toArray() method to convert the stream back to an array, which now only contains unique values.
It's important to note that the order of the elements in the array is not guaranteed to be preserved after removing duplicates using this method. If you want to maintain the order of the elements in the array, you can use LinkedHashSet instead of the distinct() method, and then convert it back to the array.
In summary, in Java 8, you can use the Stream API to remove duplicates from a string array by creating a stream of the array and using the distinct() method to remove the duplicates. This method is efficient and easy to implement, and it can be used to remove duplicates from any type of array, it's a functional and declarative way of processing collections of data.
in both cases, the order of the elements in the array is not guaranteed to be preserved after removing duplicates, if you want to maintain the order you can use a List or a LinkedHashSet instead of a HashSet or use the distinct() method.
Java 8 provides multiple ways to remove duplicates from a string array using the Stream API, you can use the distinct() method or a collection such as a Set to remove duplicates, both methods are efficient and easy to implement.
