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Virtual Memory Usage from Java under Linux, too much memory used
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This has been a long-standing complaint with Java, but it's largely meaningless, and usually based on looking at the wrong information. The usual phrasing is something like "Hello World on Java takes 10 megabytes! Why does it need that?" Well, here...
Why java.io.File doesn't have a close() method?
While java.io.RandomAccessFile does have a close() method java.io.File doesn't. Why is that? Is the file closed automatically on finalization or something?
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How to set a Fragment tag by code?
...set a Fragment tag that I have found is by doing a FragmentTransaction and passing a tag name as parameter.
7 Answers
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How do I get the dialer to open with phone number displayed?
...t.ACTION_CALL. In this case, you must add the following permission in your AndroidManifest.xml:
<uses-permission android:name="android.permission.CALL_PHONE" />
2) Need user to click on Phone_Number string and start the call.
android:autoLink="phone"
You need to use TextView with below prop...
Generating random strings with T-SQL
If you wanted to generate a pseudorandom alphanumeric string using T-SQL, how would you do it? How would you exclude characters like dollar signs, dashes, and slashes from it?
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Comment shortcut Android Studio
I'm searching for useful Android Studio keyboard shortcut for commenting code, as in Sublime Text or Eclipse.
24 Answers
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Given a number, find the next higher number which has the exact same set of digits as the original n
I just bombed an interview and made pretty much zero progress on my interview question. Can anyone let me know how to do this? I tried searching online but couldn't find anything:
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JavaScript for…in vs for
Do you think there is a big difference in for...in and for loops? What kind of "for" do you prefer to use and why?
23 Answe...
How to duplicate virtualenv
...t to install (or have already installed in case of file generated by pip), and what versions they're at.
To generate a requirements file, go into your original virtualenv, and run:
pip freeze > requirements.txt
This will generate the requirements.txt file for you. If you open that file up in ...
Where to find extensions installed folder for Google Chrome on Mac?
...t help, you can always do a custom search.
Go to chrome://extensions/, and find out the ID of an extension (32 lowercase letters) (if not done already, activate "Developer mode" first).
Open the terminal, cd to the directory which is most likely a parent of your Chrome profile (if unsure, try ...