演示两种不同进度条的使用方法。5、　　所用主要编程技术：Swing组件JButton、Timer 、Jpanel。

JCheckBox、JTextArea 后台线程编程、Thread类的使用。JProgressBar类的使用。

-demonstration of the progress of the two different methods of using. 5, the use of the main programming technology : Swing components JButton, Timer, Jpanel. JCheckBox, JTextArea background thread programming, the use of the Thread class. JProgressBar category of use.