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Text lesson

values()

Example

Retrieve all the values from a map.

import java.util.HashMap;

public
class Main {
  public static void main(String[] args) {
    HashMap<String, String> capitalCities = new HashMap<String, String>();
    capitalCities.put("England", "London");
    capitalCities.put("Germany", "Berlin");
    capitalCities.put("Norway", "Oslo");
    capitalCities.put("USA", "Washington DC");             

    
System.out.println(capitalCities.values());
  }
}

Definition and Usage

The values() method returns a collection of all the values in the map.

Note: This collection is a view of the map, so changes to the collection reflect in the map.

Syntax

public Collection<V> values()

V denotes the data type of the values in the map.

Technical Details

Returns:

A collection that includes all the values in the map.