Raouf25

// Use the City's constructor method reference to create
// a default constructor reference.
Supplier<City> defaultConstructor = City::new;
City sd = defaultConstructor.get();
sd.setName("San Diego");
sd.setCode("SD");

Raouf25

// Use the City's method references and assign them to biconsumers
BiConsumer<City, String> setNameBiConsumer = City::setName;
BiConsumer<City, String> setCodeBiConsumer = City::setCode;
     
City ny = new City();
setNameBiConsumer.accept(ny, "New York");
setCodeBiConsumer.accept(ny, "NY");

Raouf25

// Use the City's method references and assign them to functions
Function<City, String> getNameFunction = City::getName;
Function<City, String> getCodeFunction = City::getCode;

System.out.println("The code for "
        + getNameFunction.apply(sf)
        + " is "
        + getCodeFunction.apply(sf));

Raouf25

// Use a constructor with parameters to create a City
City sf = new City("San Francisco", "SF");
     
// Use a default constructor with no parameters to create a City
City la = new City();
// Set the members using setters
la.setName("Los Angeles");
la.setCode("LA");

Raouf25

public class City {

    private String name;
    private String code;

    public City() {
    }

    public City(String name, String code) {
        this.name = name;