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interface Number {}class One implements Number {}class Two implements Number {}class Three implements Number {}class NumberFactory {    final static Map
   
    > map = new HashMap<>();    static {        map.put("one", One::new);        map.put("two", Two::new);        map.put("three", Three::new);    }    public static Number createNumber(String number) {        Supplier
    
      numberSupplier = map.get(number);        if (numberSupplier != null) return numberSupplier.get();        throw new IllegalArgumentException("No such product " + number);    }}public class Main {    public static void main(String[] args) {        Number number = NumberFactory.createNumber("one");        Number number1 = NumberFactory.createNumber("two");        System.out.println(number.getClass());        System.out.println(number1.getClass());    }}
    
   

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