Java8: Copy array to list using streams

Below statement copies the data from array 'countryNamesArray' to list 'countryNamesList'.

Arrays.stream(countryNamesArray).forEach(countryNamesList::add);

Find the below working example.

Test.java

package com.sample.app;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

public class Test {

 private static List<String> countryNamesList = new ArrayList<>();

 private static String[] countryNamesArray = { "Belgium", "Cuba", "Georgia", "Mongolia", "Nepal", "Poland",
   "Sweden" };

 public static void main(String args[]) {
  /* Print country names */
  System.out.println("Country names in countryNamesArray");
  Arrays.stream(countryNamesArray).forEach(System.out::println);

  /* Copy all the array elements to array list */
  Arrays.stream(countryNamesArray).forEach(countryNamesList::add);

  /* Print data from countryNamesList */
  System.out.println("\nCountry names in countryNamesList");
  countryNamesList.stream().forEach(System.out::println);

 }
}

Output

Country names in countryNamesArray
Belgium
Cuba
Georgia
Mongolia
Nepal
Poland
Sweden

Country names in countryNamesList
Belgium
Cuba
Georgia
Mongolia
Nepal
Poland
Sweden

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