SortedSet.first() has the following syntax.
E first()
In the following code shows how to use SortedSet.first() method.
//w w w .ja va 2s . c o m import java.util.SortedSet; import java.util.TreeSet; public class Main { public static void main(String[] argv) throws Exception { SortedSet<String> set = new TreeSet<String>(); set.add("b"); set.add("c"); set.add("a"); System.out.println(set.first()); } }
The code above generates the following result.