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Text lesson

get()

Example

Retrieve the value associated with a specific entry in 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.get("England"));
  }
}

Definition and Usage

The get() method returns the value associated with a specified key in the map.

Syntax

public V get(Object key)

V represents the data type of the values within the map.

Parameter Values

Parameter	Description
key	Required: Specifies the key of the entry from which to retrieve the value.

Technical Details

Returns:

It returns the value of the entry with the specified key, or null if there is no entry with that key.