File list (Check if you may need any files):
calculator2.5
.............\.classpath
.............\.project
.............\bin
.............\...\BugWin$MyThread.class
.............\...\BugWin.class
.............\...\Cal.class
.............\...\CalWin.class
.............\...\Mailbug.class
.............\...\panelCommon.class
.............\lib
.............\...\mail.jar
.............\src
.............\...\BugWin.java
.............\...\Cal.java
.............\...\CalWin.java
.............\...\Mailbug.java
.............\...\panelCommon.java
计算器.jar
calculator2.5\教程说明见这里.txt
教程说明见这里.txt