Java Collection Tutorial - Java TreeMap.ceilingEntry(K key)


TreeMap.ceilingEntry(K key) has the following syntax.

public Map.Entry <K , V> ceilingEntry(K key)


In the following code shows how to use TreeMap.ceilingEntry(K key) method.

/* www .j a v a  2  s  .  c  o m*/
import java.util.NavigableMap;
import java.util.TreeMap;

public class Main {
   public static void main(String[] args) {
      NavigableMap<Integer, String>  treemap = new TreeMap<Integer, String> ();
      // populating tree map
      treemap.put(2, "two");
      treemap.put(1, "one");
      treemap.put(3, "three");
      treemap.put(6, "six");
      treemap.put(5, "from");
      System.out.println("Ceiling entry for 4: "+ treemap.ceilingEntry(4));
      System.out.println("Ceiling entry for 5: "+ treemap.ceilingEntry(5));

The code above generates the following result.