(The calculator source code program, Android programmable calculator, and the calculator program code in the Android mobile phone system are not perfect, but they are good materials for learning Android.
codefans\Calculator\.settings\org.eclipse.jdt.core.prefs
codefans\Calculator\res\drawable\icon.png
codefans\Calculator\res\layout\main.xml
codefans\Calculator\res\values\strings.xml
codefans\Calculator\src\com\jkansor\calculator\Calculator.java
codefans\Calculator\src\com\jkansor\calculator\CalculatorConstants.java
codefans\Calculator\src\com\jkansor\calculator\CalculatorTokenManager.java
codefans\Calculator\src\com\jkansor\calculator\KCalculator.java
codefans\Calculator\src\com\jkansor\calculator\ParseException.java
codefans\Calculator\src\com\jkansor\calculator\R.java
codefans\Calculator\src\com\jkansor\calculator\SimpleCharStream.java
codefans\Calculator\src\com\jkansor\calculator\Token.java
codefans\Calculator\src\com\jkansor\calculator\TokenMgrError.java
codefans\Calculator\.classpath
codefans\Calculator\.project
codefans\Calculator\AndroidManifest.xml
..... Too many files omitted)