qrimage

模拟IC卡，javacard模拟的基础框架，javacard hce framework(javacard hce framework)

An immutable hash-based multiset. Does not permit null elements.

SSD3 Exercise 6, FileCatalogLoader.java, GourmetCoffee.java

说明：  Java版的拼图游戏，玩家可以自己更换图片，只要你把它分成块，另外它是以成绩=1000-时间（秒）-移动步数*10来决定你是否输了，按F1键开始游戏，Y健预览图片。(In the Java version of the jigsaw puzzle, players can change the picture by themselves, as long as you divide it into blocks, in addition, it is determined by whether the score = 1000-time (seconds) -moving steps * 10. Yjian previews the picture.)

Java SpringBoot整合dubbo实例(Java SpringBoot integration dubbo Example)

说明：  将指定经纬度的点在地图上显示出来，提供地图图片放大缩小和拖动功能。(The designated latitude and longitude points will be displayed on the map, providing map image zooming and zooming and dragging functions.)

传智播客毕向东老师Java_SE基础课程笔记(Chuan Chi podcast Bi Xiangdong teacher Java_SE basic course notes)

说明：  一只青蛙一次可以跳上1级台阶，也可以跳上2级。求该青蛙跳上一个n级的台阶总共有多少种跳法。要求：分别用普通方法和递归方法实现(A frog can jump up a step or two at a time. Find out how many jumping methods the frog can use to jump up an n-step. Requirements: Implemented by common method and recursive method respectively)

绘制1个沿圆形轨道运动的红色球体和1个沿椭圆轨道运动的蓝色球体。两个轨道圆心重合，圆的半径为100，椭圆的长短轴半径分别为200和100，运动方向为顺时针(Draw a circular orbital motion along the red sphere and a movement along the elliptical orbit of the blue sphere. Center two tracks overlap, the circle Radius of 100, the radius of the ellipse minor axis of 200 and 100, respectively, for the clockwise direction of motion)

说明：  这是一本介绍java虚拟机的经典书籍，本书可供java入门者或是有一定java基础的人阅读。(This is a classic book about Java virtual machines.)