kubawieczorek

public BufferedInputStream(InputStream in)

kubawieczorek

public BufferedInputStream(InputStream in, int size)

kubawieczorek

public class Car {
    private String type;
    private BigDecimal price;

    public Car(String type, BigDecimal price) {
        this.type = type;
        this.price = price;
    }

    public String getType() {

kubawieczorek

class Car {

    private String type;
    private BigDecimal price;

    public Car(String type, BigDecimal price) {
        this.type = type;
        this.price = price;
    }

kubawieczorek

public static void main(String[] args) {
    Car fiat1 = new Car("Fiat", new BigDecimal(4000));
    Car fiat2 = new Car("Fiat", new BigDecimal(4000));
    System.out.println(fiat2.hashCode() == fiat1.hashCode()); //false
    System.out.println(fiat2.equals(fiat1)); //true
}

kubawieczorek

@Override
public int hashCode() {
    return Objects.hash(getType(), getPrice());
}

kubawieczorek

class Car {
    
    private String carType;

    public Car(String type) {
        this.carType = type;
    }

    public String getCarType() {
        return carType;

kubawieczorek

Map safeMap = Collections.synchronizedMap(new HashMap<>());

kubawieczorek

BufferedInputStream bufferedInputStream = new BufferedInputStream(new FileInputStream("test.txt"));

kubawieczorek

 BufferedOutputStream bufferedOutputStream = new BufferedOutputStream(new FileOutputStream("test.txt"));