public class TestCar_EX { public static void main(String[] args) { Car c1 = new Car("red", "xxx"); } }
class Car { String color; String brand;
public Car(String color, String brand) { this.color = color; this.brand = brand; }
void run() { System.out.printf("I am running...running..running~~~~\n"); }
void showMessage() { System.out.printf("汽车颜色:%s, 汽车品牌:%s\n", color, brand); } }
public class TestCar_EX和class Car 有什么联系和区别呢
void run() 这个方法前为什么不加public呢