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Exception.Message vs Exception.ToString()
...wever, I read an article which states that it's better to use Exception.ToString() . With the latter, you retain more crucial information about the error.
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how to exclude null values in array_agg like in string_agg using postgres?
...s g
GROUP BY g.id
) s
Or, simpler and may be cheaper, using array_to_string which eliminates nulls:
SELECT
g.id,
array_to_string(
array_agg(CASE WHEN g.canonical = 'Y' THEN g.users ELSE NULL END)
, ','
) canonical_users,
array_to_string(
array_agg(CASE ...
To draw an Underline below the TextView in Android
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There are three ways of underling the text in TextView.
SpannableString
setPaintFlags(); of TextView
Html.fromHtml();
Let me explain you all approaches :
1st Approach
For underling the text in TextView you have to use SpannableString
String udata="Underlined Text";
SpannableString con...
Command not found error in Bash variable assignment
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STR = "foo"
bash tries to run a command named STR with 2 arguments (the strings '=' and 'foo')
When you write:
STR =foo
bash tries to run a command named STR with 1 argument (the string '=foo')
When you write:
STR= foo
bash tries to run the command foo with STR set to the empty string in ...
How can I explode and trim whitespace?
For example, I would like to create an array from the elements in this string:
11 Answers
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Why is an int in OCaml only 31 bits?
... like true, false, nil, the 127 ASCII characters, some commonly used short strings, the empty list, the empty object, the empty array and so on near the 0 address.
For example, in the MRI, YARV and Rubinius Ruby interpreters, integers are encoded the way I described above, false is encoded as addre...
How to use the toString method in Java?
Can anybody explain to me the concept of the toString() method, defined in the Object class? How is it used, and what is its purpose?
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Open Redis port for remote connections
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in config file I added string bind 0.0.0.0 after string bind 127.0.0.1. Restarted redis. And now can connect remotly.
– Maxim Yefremov
Sep 30 '13 at 10:08
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Different ways of loading a file as an InputStream
... to the package of the class you are calling it from. For example calling, String.class.getResourceAsStream("myfile.txt") will look for a file in your classpath at the following location: "java/lang/myfile.txt". If your path starts with a /, then it will be considered an absolute path, and will star...
Running the new Intel emulator for Android
...e Accelerated Execution Manager. Download it with the SDK Manager, it's in Extras. After this, go to the folder
[Android SDK Root]\extras\intel\Hardware_Accelerated_Execution_Manager
then run IntelHaxm.exe and install.
Here the link of the Intel Hardware Accelerated
IntelHaxm.exe for
Microsoft Wi...