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How to publish your android app in Android market

I faced some difficulties when trying to publish my app. So I thought this post may help others.
First you need to have a google account. Then you should pay 25$ (US dollars 25) fees for registration with your credit card.
Next step will be creation of your android app. That is relatively easy. ;-)
But remember your app must have version code and version name. 
Next step is signing your app. This must be done by creating a cryptographic key for your app. To do this you can use the java command keytool.
Again this command at command prompt may give a problem. May be class path variable is not set properly. No problem. You can still go to your jdk directory, then bin subdirectory within  that. Now you have your keytool command. 
You can use the keytool command like
keytool -genkey -v -keystore your-keystore-name -alias your-alias-name -keyalg RSA -keysize 2048 -validity 10000
You must provide a password for the keystore.
Once key is generated, you can go to eclipse IDE and use the option EXPORT in the context menu of project (right click on project name) . You will be prompted for project name, keystore name and location and its password. You should also give the alias name and password and apk file name and location. The apk thus generated is the signed app which can be published into market.
Funnily for me I used to get the error saying the key is not valid till future. I tried many times without much success. Then I realized the reason could because of time zone in India is the cause. So I changed my system date to 1 day in past. Then created the key again. This hack worked. 
You should also upload two screen shots of the app.
Finished all these steps? Published also? Now keep your fingers crossed and pray that people will download and install your app. :-) 

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