File list (Check if you may need any files):
jisuanqi\.classpath
........\.project
........\.settings\org.eclipse.jdt.core.prefs
........\AndroidManifest.xml
........\assets\fonts\AK-ANGEL.TTF
........\......\.....\INDEPEND.TTF
........\......\.....\momoantique.ttf
........\bin\AndroidManifest.xml
........\...\classes\com\example\caculator\BuildConfig.class
........\...\.......\...\.......\.........\Calculate$operator.class
........\...\.......\...\.......\.........\Calculate$operator1.class
........\...\.......\...\.......\.........\Calculate.class
........\...\.......\...\.......\.........\Delete.class
........\...\.......\...\.......\.........\Display.class
........\...\.......\...\.......\.........\Expression.class
........\...\.......\...\.......\.........\ExpressionException.class
........\...\.......\...\.......\.........\own$Stack.class
........\...\.......\...\.......\.........\own.class
........\...\.......\...\.......\.........\R$attr.class
........\...\.......\...\.......\.........\R$drawable.class
........\...\.......\...\.......\.........\R$id.class
........\...\.......\...\.......\.........\R$layout.class
........\...\.......\...\.......\.........\R$menu.class
........\...\.......\...\.......\.........\R$string.class
........\...\.......\...\.......\.........\R$style.class
........\...\.......\...\.......\.........\R.class
........\...\.......\...\.......\.........\Symbol$FUNTYPE.class
........\...\.......\...\.......\.........\Symbol$OPTYPE.class
........\...\.......\...\.......\.........\Symbol$SYMTYPE.class
........\...\.......\...\.......\.........\Symbol.class
........\...\classes.dex
........\...\com.example.caculator.Caculator.apk
........\...\jarlist.cache
........\...\res\drawable-hdpi\ic_action_search.png
........\...\...\.............\ic_launcher.png
........\...\...\.........ldpi\ic_launcher.png
........\...\...\.........mdpi\ic_action_search.png
........\...\...\.............\ic_launcher.png
........\...\...\.........xhdpi\ic_action_search.png
........\...\...\..............\ic_launcher.png
........\...\resources.ap_
........\gen\com\example\caculator\BuildConfig.java
........\...\...\.......\.........\R.java
........\ic_launcher-web.png
........\libs\android-support-v4.jar
........\proguard-project.txt
........\project.properties
........\res\drawable\selector.xml
........\...\........\selector1.xml
........\...\........\selector2.xml
........\...\........-hdpi\ic_action_search.png
........\...\.............\ic_launcher.png
........\...\.........ldpi\ic_launcher.png
........\...\.........mdpi\ic_action_search.png
........\...\.............\ic_launcher.png
........\...\.........xhdpi\ic_action_search.png
........\...\..............\ic_launcher.png
........\...\layout\main.xml
........\...\......\other.xml
........\...\menu\main.xml
........\...\values\strings.xml
........\...\......\styles.xml
........\src\com\example\caculator\caculate.java
........\...\...\.......\.........\Delete.java
........\...\...\.......\.........\Display.java
........\...\...\.......\.........\Expression.java
........\...\...\.......\.........\ExpressionException.java
........\...\...\.......\.........\own.java
........\...\...\.......\.........\Symbol.java
........\bin\classes\com\example\caculator
........\...\.......\...\example
........\gen\com\example\caculator
........\src\com\example\caculator
........\bin\classes\com
........\...\res\drawable-hdpi
........\...\...\drawable-ldpi
........\...\...\drawable-mdpi
........\...\...\drawable-xhdpi
........\gen\com\example
........\src\com\example
........\assets\fonts
........\bin\classes
........\...\res
........\gen\com
........\res\drawable
........\...\drawable-hdpi
........\...\drawable-ldpi
........\...\drawable-mdpi
........\...\drawable-xhdpi
........\...\layout
........\...\menu
........\...\values
........\src\com
........\.settings
........\assets
........\bin
........\gen
........\libs
........\res
........\src