程序运行网站：

https://www.jyshare.com/compile/10/

课堂任务：

Write code that figures out the cost per person for a dinner including the tip. Assume the bill was $89.23, there are three people, and the tip should be 20%. Make sure your answer is a double.

课后作业：

Write code

Background:Determine whether a child can attend a friend's birthday party.
Requirement:Write a Party class, in the main method.
Define variables: age=10, hasInvitation=true.
Need for Parents: Age<12 and with invitation letter.

Calculate and output:CanJoin (can participate): Age ≥ 8 and with invitation letter

完成后请把作业提交至 https://ks.wjx.com/vm/wRZCsSO.aspx#

请注意提交后，作业答案和批改情况无法返给你们，如有需要，自己保存所写代码，第二天上课讲解时对比。

若觉得以上练习简单/不够/目标是通过AP考试的同学，请自行打开以下网址，进行额外练习：

https://runestone.academy/ns/books/published/csawesome/index.html