Contiguous simply means touching or sharing a border, according to Merriam-Webster. When it comes to the United States, contiguous refers to all of the states that touch one another, without another country or a body of water coming between them. These are sometimes also referred to as the lower 48 states.
.apk extension stands for android package file. It is a file format used to distribute and install applications.It includes the programm codes ,assets ,resourses ,certificates and manifest file. .Dex extensions stands for Dalvix Executable files.
-keypass-Specifies the password for the private key. Here is the command to run to sign your application APK. myapplication.apk is the name of your APK file. aliasname is the alias of the key you created.Don't specify the-keypass and-storepass attributes and it will prompt you for the passwords. Enter the passwords correctly, and your signing process is complete. You can now publish your application on the Android Market.keypass-Specifies the password for the private key. Here is the command to run to sign your application APK. myapplication.apk is the name of your APK file. aliasname is the alias of the key you created.