java.util.TreeMap.lastEntry() Method

Description

ThelastEntry() method is used to return a key-value mapping associated with the greatest key in this map, or null if the map is empty.

Declaration

Following is the declaration for java.util.TreeMap.lastEntry() method.

public Map.Entry<K,V> lastEntry()

Parameters

NA

Return Value

The method call returns an entry with the greatest key, or null if this map is empty.

Exception

NA

Example

The following example shows the usage of java.util.TreeMap.lastEntry() method.

package com.tutorialspoint;

import java.util.*;

public class TreeMapDemo {
   public static void main(String[] args) {

      // creating tree map 
      TreeMap<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, "five");

      // getting the value with greatest key      
      System.out.println("Checking last entry");
      System.out.println("Value is: "+ treemap.lastEntry());
   }    
}

Let us compile and run the above program, this will produce the following result.

Checking last entry
Value is: 6=six

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