public class RobotVacuum
{
    private String brand;
    private String model;
    private int serialNumber;
    private double price;
    
    public RobotVacuum(String brand,String model, int serialNumber, double price)
    {
        this.brand = brand;
        this.model = model;
        this.serialNumber =serialNumber;
        this.price=price; 
    }
    
    public void setBrand(String brand)
    {
        this.brand = brand;
    }
    
    public void setModel(String model)
    {
        this.model = model;
    }
    
    public void setSerialNumber(int serialNumber)
    {
        this.serialNumber =serialNumber;
    }
    
    public void setPrice(double price)
    {
        this.price=price; 
    }
    
    public String getBrand()
    {
        return brand;
    }
    
    public String getModel()
    {
        return model;
    }
    
    public int getSerialNumber()
    {
        return serialNumber;
    }
    
    public double getPrice()
    {
        return price; 
    }
    
    public String toString()
    {
        return "\nBrand = " + brand +
        "\nmodel = " + model +
        "\nSerial Number =" +serialNumber  +
        "\nPrice=" + price; 
    }
}