MapsV1 is deprecated, and the below tutorial is no longer useful. To use Maps in your android App, start with MapsV2 >> More info here


    I have come across many tutorials which tell how to obtain MD5 Key for using this key in Map based Applications.
 But still there are lot of confusions to obtain that. so I decided to write this "Tut"

This Method is for obtaining  "MD5" Key, for Windows with Java JRE 6 or JRE 7

First Open Your "Command Prompt"

change your directory to latest version of "JRE" This JRE will be under
C:/ProgramFiles/Java/<jre Version>/bin

In my case it's
cd C:\Program Files\Java\jre7\bin

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 now enter the below 

keytool.exe -list -alias androiddebugkey -keystore "<keystore path>\debug.keystore" -storepass android -keypass android


Mine 
keytool.exe -list -alias androiddebugkey -keystore "C:\Users\Android\.android\debug.keystore" -storepass android -keypass android


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  Some of you might Get The SHA1 Key,  dont worry, this is because of the latest version of the Java JRE-7 you installed,  then you have to use the below code

keytool.exe -list -v -alias androiddebugkey -keystore "<keystore path>\debug.keystore" -storepass android -keypass android

Mine
keytool.exe -list -v -alias androiddebugkey -keystore "C:\Users\Android\.android\debug.keystore" -storepass android -keypass android


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copy the MD5 Key & sign in to your Google account & open this link http://code.google.com/android/maps-api-signup.html Now paste your MD5 key

Check the Terms and conditions & "Generate API Key"

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 use this key in your XML Layout/File




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