Flash cards
Review the key moves
1/4
Core idea
What is the main idea behind Java HashMap values() Method?
Lesson checks
Practice each idea before moving on
Short Mimo-style checks built from this lesson's code, terms, and sequence.
1Quick choice
Which statement best captures the main point of this lesson?
2Fill blank
Complete the missing token from the example code.
___ java.util.HashMap;3Order
Put the learning moves in the order that makes the concept easiest to apply.
The values() method returns a collection containing all of the values in the map.
Definition and Usage
Java HashMap values() Method
❮ HashMap Methods
Example
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 containing all of the values in the map.
Note
The returned collection is a view of the map, which means that changing the collection also changes the map.
Syntax
public Collection<V> values()V refers to the data type of the values of the map.
Technical Details
| Returns: | A collection containing all of the values in the map. |
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