Java Collection Tutorial - Java TreeMap.entrySet()

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Syntax

TreeMap.entrySet() has the following syntax.

public Set <Map.Entry <K, V>> entrySet()

Example

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

import java.util.Set;
import java.util.TreeMap;
/*from  w ww  . j a  va  2s .  c o  m*/
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");
      
      // putting values in set
      Set mapset=treemap.entrySet();
      
      System.out.println("Checking value");
      System.out.println("Entry set values: "+mapset);
   }    
}

The code above generates the following result.

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