createobjectdemo.java.bak

苏州大学java学习的ppt课件

public class CreateObjectDemo {
    public static void main(String[] args) {

        // 建立一个点和两个矩形对象
        Point origin_one = new Point(23, 94);
        Rectangle rect_one = new Rectangle(origin_one, 100, 200);
        Rectangle rect_two = new Rectangle(50, 100);

        // 显示矩形的 width, height, and area
        System.out.println("Width of rect_one: " + rect_one.width);
        System.out.println("Height of rect_one: " + rect_one.height);
        System.out.println("Area of rect_one: " + rect_one.area());

        // 第二个矩形的位置是。。
        rect_two.origin = origin_one;

        //  显示第二个的位置
        System.out.println("X Position of rect_two: " + rect_two.origin.x);
        System.out.println("Y Position of rect_two: " + rect_two.origin.y);

        // 移到新位置
        rect_two.move(40, 72);
        System.out.println("X Position of rect_two: " + rect_two.origin.x);
        System.out.println("Y Position of rect_two: " + rect_two.origin.y);
    }
}