Ways to install an apk into device

There are different ways of installing any apk inside device:

1. Using USB and eclipse

• At first you need to install the drivers for the specific phone
• Enabling USB debugging in phone can be done by selecting Setting application->Developer option->USB Debugging must be checked
• Inside eclipse select DDMS now you will be able to locate your device inside the devices segment
• Select the project you want to install by right click Run As->Run configuration->select your device ->click OK
• It will get Installed in your phone.

     2.Using Command line

• Follow the steps as mentioned in (1) for phone to be set in debugging mode
• Go to the command prompt (by start->run->type cmd-> hit enter) 
• locate your android sdk folder and the platform-tools inside sdk folder
• cd path to sdk/platform-tools
• once the directory is changed to platform tools type command adb install yourapp.apk

3.Directly pasting the apk inside your phone storage and installing

4.Sending via mail are other alternatives J

Cheers for installing apk!!... :) :)

Also see 

1. Also check out how to operate your Android phone from Window OS. 
2. Android apk generation through command line 
3. Android SQL browsing through Windows
4. ADB over Wifi 
5. EditText to TextView conversion 
6. SVN for Android Eclipse