Java Collection Tutorial - Java TreeMap.lastKey()

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Syntax

TreeMap.lastKey() has the following syntax.

public K lastKey()

Example

In the following code shows how to use TreeMap.lastKey() method.

import java.util.TreeMap;
//from ww  w .j av  a2  s. c  om
public class Main {
   public static void main(String[] args) {
      
      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, "from java2s.com");
      
      // getting the last key   
      System.out.println("Checking last key");
      System.out.println("Value is: "+ treemap.lastKey());
   }     
}

The code above generates the following result.

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