TreeMap lowerEntry(K key) method in java
import java.util.Map;
import java.util.TreeMap;
public class TreeMapLowerEntryMethodExample
{
public static void main(String[] args)
{
try
{
TreeMap<Integer, String> tm = new TreeMap<Integer, String>();
tm.put(7, "red");
tm.put(3, "green");
tm.put(6, "violet");
tm.put(5, "blue");
tm.put(4, "yellow");
System.out.println("Given TreeMap: " + tm);
// get lowerEntry value for null using lowerEntry() method
System.out.println("Get lowerEntry value for value null: ");
Map.Entry<Integer, String> value = tm.lowerEntry(null);
System.out.println("Value is: " + value);
}
catch(NullPointerException ex)
{
System.out.println("Exception : " + ex);
}
}
}