Результат записати у файл.

HashMap<String, String> myHashMap = new HashMap<String, String>();

myHashMap.put("Basil", "07.12.1987");

myHashMap.put("Kate", "12.10.1971");

myHashMap.put("Lena", "11.01.1991");

System.out.println("The size of map is " + myHashMap.size());

import java.io. *;

public class Program {

public static void main (String [] args) {

String text = "Hello world!"; // рядок для запису

try (FileOutputStream fos = new FileOutputStream ( "C: /SomeDir/notes.txt"))

{byte [] buffer = text.getBytes ();// новий рядок в байти

fos.write (buffer, 0, buffer.length);}

catch (_____ex) {

System.out.println (ex.getMessage ());}

System.out.println ( "The file has been written");}}

import java.util.ArrayList;

public class MyClass {

public static void main(String[] args) {

ArrayList<String> cars = new ArrayList<String>();

cars.add("Volvo");

cars.add("BMW");

cars.add("Ford");

cars.add("Mazda");

}

}

ArrayList<Integer> ar = new ArrayList<Integer>(9);