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How do I use a custom Serializer with Jackson?
...nal for ease.
public class Classroom {
public final double double1 = 1234.5678;
public final Double Double1 = 91011.1213;
public final Student student1 = new Student();
}
public class Student {
public final double double2 = 1920.2122;
public final Double Double2 = 2324.2526;
}...
Check if a key exists inside a json object
...il: "sam@gmail.com",
merchant_id: "sam",
mobileNo: "9874563210",
orderID: "123456",
passkey: "1234"
}
you can find the details here
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PadLeft function in T-SQL
...as the number gets bigger it should ALWAYS work.... regardless if its 1 or 123456789...
So if your max value is 123456... you would see 0000123456 and if your min value is 1 you would see 0000000001
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Javascript: formatting a rounded number to N decimals
...(tempNumber);
return roundedTempNumber / factor;
};
myNamespace.round(1234.5678, 1); // 1234.6
myNamespace.round(1234.5678, -1); // 1230
from Mozilla Developer reference for Math.round()
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git remote add with other SSH port
...
You can just do this:
git remote add origin ssh://user@host:1234/srv/git/example
1234 is the ssh port being used
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Difference between toFixed() and toPrecision()?
...rovides x total length." does not necessarily hold. Counter example: 0.00001234.toPrecision(3)
– djvg
Nov 28 '18 at 8:36
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How to convert a double to long without casting?
...Assuming you're happy with truncating towards zero, just cast:
double d = 1234.56;
long x = (long) d; // x = 1234
This will be faster than going via the wrapper classes - and more importantly, it's more readable. Now, if you need rounding other than "always towards zero" you'll need slightly more...
Why should eval be avoided in Bash, and what should I use instead?
... '\e[31mError (%d): %s\e[m' "$1" "${*:2}"
exit "$1"
}
# This...
error 1234 Something went wrong.
# And this...
error 1234 'Something went wrong.'
# Result in the same output (as long as $IFS has not been modified).
Now say we want to add an option to redirect output as an argument to println....
The SQL OVER() clause - when and why is it useful?
... MAKE MODEL YEAR COLOR
-----------------------------------------
1234ASDF Ford Taurus 2008 White
1234JKLM Chevy Truck 2005 Green
5678ASDF Ford Mustang 2008 Yellow
Run below SQL
SELECT VIN,
MAKE,
MODEL,
YEAR,
COLOR ,
COUNT(*) OVER (PARTITION BY YEAR...
What does !! mean in ruby?
... values of 0 or 1. Takes this example (parentheses added for clarity):
!(1234) == 0
!(0) == 1
!(!(1234)) == 1
The "not-not" syntax converts any non-zero integer to 1, the canonical boolean true value.
In general, though, I find it much better to put in a reasonable comparison than to use this u...