private  String brand;
	private String color;
	private double speed=0;
	
	 Vehicle(String brand, String color) {
		this.brand = brand;
		this.color = color;
		
	}
	
	void Vehicle(String brand, String color, double speed) {
		
		this.brand = brand;
		this.color = color;
		this.speed = speed;
	}

	void run() {
		System.out.println("這個汽車的品牌為"+this.brand+"這個汽車的顏色為"+this.color+"這個汽車的速度為"+this.speed);
	}

	public static void main(String[] args) {
		Vehicle v=new Vehicle("benz","black");
		 v.run();
		
			v.Vehicle("benz", "black", 300);
			v.run();

		

	}