car.java

来自「这是清华大学编写的JAVA教材中所有题目的源代码！」· Java 代码 · 共 29 行

class Car
{
	int carNumber;
	static int carCounter=0;
	
	public Car()
	{
		carCounter++;
		carNumber=100+carCounter;
	}
}

class Test
{
	public static void main(String args[])
	{
		Car car1=new Car();
		System.out.println("carNumber="+car1.carNumber);
		System.out.println("carCount="+Car.carCounter+"\n");
		
		Car car2=new Car();
		System.out.println("carNumber="+car2.carNumber);
		System.out.println("carCount="+Car.carCounter+"\n");

		Car car3=new Car();
		System.out.println("carNumber="+car3.carNumber);
		System.out.println("carCount="+Car.carCounter+"\n");
	}
}