TreeSet: first() : TreeSet « java.util « Java by API






  1. Java by API
  2. java.util
  3. TreeSet

TreeSet: first()

  

import java.util.Arrays;
import java.util.TreeSet;

public class Main {
  public static void main(String args[]) throws Exception {
    String elements[] = { "A", "C", "D", "G", "F" };
    TreeSet<String> set = new TreeSet<String>(Arrays.asList(elements));
    System.out.println(set);
    System.out.println(set.first());
    System.out.println(set.last());
  }
}








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4.TreeSet: add(E o)
5.TreeSet: comparator()
6.TreeSet: headSet(T toElement)
7.TreeSet: last()
8.TreeSet: remove(Object o)
9.TreeSet: subSet(T fromElement, T toElement)
10.TreeSet: tailSet(T fromElement)