main.java

< Java多线程设计模式>> 一书

public class Main {
    public static void main(String[] args) {
        //建立实体
        Point p1 = new Point(0, 0);
        Point p2 = new Point(100, 0);
        Line line = new Line(p1, p2);

        //显示
        System.out.println("line = " + line);

        //状态变更