aplication that shows the part of create graphics with buttom java

实现自动点名,当点击按钮时，会自动将所有已经定义的名字显示一遍，然后随机显示一个人的名字。如果停止点击，每隔一小时他会自动随机显示一个人的名字，知道所有的名字被点完为止。-it implements dianming auto.when you click the buttom,it will prent a name . if you stop click ,it will apper a name one hour later.

You can generate normal distribution by clicking certain buttom in this program which is quite convincing and useful.