public class Car {
	private String brand;
	public Car(String brand) {
		this.brand=brand;
	}
	class Engine{
		String model;
		public Engine(String model) {
			this.model=model;
		}
		public void ignite() {
			System.out.println("发动机"+this.model+"点火");
		}
	}
	public void start() {
		System.out.println("启动"+this.brand);
	}
	public static void main(String[]args) {
		Car car=new Car("大众银行");
		car.start();
		//创建发动机类（内部类）对象，并为发动机型号赋值
		Car.Engine engine=car.new Engine("EA211");
		engine .ignite();
	}

}