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How to use putExtra() and getExtra() for string data

...omeone please tell me how exactly to use getExtra() and putExtra() for intents? Actually I have a string variable, say str, which stores some string data. Now, I want to send this data from one activity to another activity. ...
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Image Greyscale with CSS & re-color on mouse-over?

I am looking to take an icon that is colored (and will be a link) and turn it greyscale until the user places their mouse over the icon (where it would then color the image). ...
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How to make div background color transparent in CSS

I'm not using CSS3. So I can't use opacity or filter attributes. Without using these attributes how can I make the background-color transparent of a div ? It should be kind of the text box example in this link . Here the text box background color is transparent. I want to make the same, but ...
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Is it possible to install APK file if more than one emulators/devices are connected [duplicate]

I know how to install the apk file in to the emulator by command prompt and all that. But i want to know is it possible to install same apk file in to multiple emulator by giving any specific name ? Actually i have to test one apk file in to many device. and for that i have started many device. I kn...
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How to overlay one div over another div

I need assistance with overlaying one individual div over another individual div . 8 Answers ...
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Is it possible to GROUP BY multiple columns using MySQL?

Is it possible to GROUP BY more than one column in a MySQL SELECT query? For example: 7 Answers ...
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How to parse JSON in Java

I have the following JSON text. How can I parse it to get the values of pageName , pagePic , post_id , etc.? 34 Answers ...
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Behaviour of increment and decrement operators in Python

I notice that a pre-increment/decrement operator can be applied on a variable (like ++count ). It compiles, but it does not actually change the value of the variable! ...
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Google OAuth 2 authorization - Error: redirect_uri_mismatch

...t up generated Client ID: and Client Secret to my app and tried to log in with Google. Unfortunately, I got the error message: ...
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jQuery trigger file input

Am trying to trigger an upload box (browse button) using jQuery. The method I have tried now is: 21 Answers ...