NavigableMap: lowerKey(T key) : NavigableMap « java.util « Java by API






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

NavigableMap: lowerKey(T key)

 

import java.util.Calendar;
import java.util.Locale;
import java.util.Map;
import java.util.NavigableMap;
import java.util.TreeMap;

public class Main {
  public static void main(String args[]) {
    Calendar now = Calendar.getInstance();
    Locale locale = Locale.getDefault();

    Map<String, Integer> names = now.getDisplayNames(Calendar.DAY_OF_WEEK, Calendar.LONG, locale);
    NavigableMap<String, Integer> nav = new TreeMap<String, Integer>(names);
    System.out.printf("Whole list:%n%s%n", nav);
    System.out.printf("Key lower before Sunday: %s%n", nav.lowerKey("Sunday"));
  }
}








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1.NavigableMap: ceilingKey(T key)
2.NavigableMap: floorKey(T key)
3.NavigableMap: higherKey(String key)
4.NavigableMap: lastEntry()
5.NavigableMap: navigableKeySet()
6.NavigableMap: pollFirstEntry()
7.NavigableMap: pollLastEntry()