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What is an initialization block?
We can put code in a constructor or a method or an initialization block. What is the use of initialization block? Is it necessary that every java program must have it?
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Decreasing height of bootstrap 3.0 navbar
I am trying to decrease bootstrap 3.0 navbar height which is used with fixed top behavior. Here i am using code.
9 Answers
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Generate random numbers following a normal distribution in C/C++
...d numbers from a regular RNG.
The Box-Muller transform is commonly used. It correctly produces values with a normal distribution. The math is easy. You generate two (uniform) random numbers, and by applying an formula to them, you get two normally distributed random numbers. Return one, and sav...
How to do a logical OR operation in shell scripting
I am trying to do a simple condition check, but it doesn't seem to work.
8 Answers
8
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How to extract filename.tar.gz file
...SIX tar archive,
the archive is a tar, not a GZip archive.
Unpack a tar without the z, it is for gzipped (compressed), only:
mv filename.tar.gz filename.tar # optional
tar xvf filename.tar
Or try a generic Unpacker like unp (https://packages.qa.debian.org/u/unp.html), a script for unpacking a w...
Can I underline text in an Android layout?
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It can be achieved if you are using a string resource xml file, which supports HTML tags like <b></b>, <i></i> and <u></u>.
<resources>
<string name="your_string_here">This...
What is the best method of handling currency/money?
... migration, do something like this:
# precision is the total number of digits
# scale is the number of digits to the right of the decimal point
add_column :items, :price, :decimal, :precision => 8, :scale => 2
In Rails, the :decimal type is returned as BigDecimal, which is great for price c...
What's the best way to iterate an Android Cursor?
I frequently see code which involves iterating over the result of a database query, doing something with each row, and then moving on to the next row. Typical examples are as follows.
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Convert JSON String to Pretty Print JSON output using Jackson
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To indent any old JSON, just bind it as Object, like:
Object json = mapper.readValue(input, Object.class);
and then write it out with indentation:
String indented = mapper.writerWithDefaultPrettyPrinter().writeValueAsString(json);
this avoids your havin...
How to create a tag with Javascript?
I'm looking for a way to insert a <style> tag into an HTML page with JavaScript.
14 Answers
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