Java Set.toArray(T[] a)
Syntax
Set.toArray(T[] a) has the following syntax.
<T> T[] toArray(T[] a)
Example
In the following code shows how to use Set.toArray(T[] a) method.
import java.util.Arrays;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
// w w w .j a v a2 s. co m
public class Main {
public static void main(String[] args) {
// A string array with duplicate values
String[] data = { "A", "C", "B", "D", "A", "B", "E", "D", "B", "C" };
System.out.println("Original array : " + Arrays.toString(data));
List<String> list = Arrays.asList(data);
Set<String> set = new HashSet<String>(list);
System.out.print("Remove duplicate result: ");
String[] result = new String[set.size()];
set.toArray(result);
for (String s : result) {
System.out.print(s + ", ");
}
}
}
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