import java.util.HashSet;
import java.util.Arrays;
public class MyClass {
public static void main(String args[]) {
String[] array = {"java", "c", "c++", "c#"};
HashSet<String> hset = new HashSet<String>(Arrays.asList(array));
System.out.println(hset);
}
}
/*
run:
[c#, c++, java, c]
*/