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How do I format a number in Java?
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From this thread, there are different ways to do this:
double r = 5.1234;
System.out.println(r); // r is 5.1234
int decimalPlaces = 2;
BigDecimal bd = new BigDecimal(r);
// setScale is immutable
bd = bd.setScale(decimalPlaces, BigDecimal.ROUND_HALF_UP);
r = bd.doubleValue();
System.out.pri...
if/else in a list comprehension
... ternary operator ?: that exists in other languages. For example:
value = 123
print(value, 'is', 'even' if value % 2 == 0 else 'odd')
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How to replace a set of tokens in a Java String?
...ched {1} which is due on {2}";
String[] values = {
"John Doe", "invoice #123", "2009-06-30"
};
System.out.println(MessageFormat.format(msg, values));
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Best way to alphanumeric check in JavaScript
...amp;& // upper alpha (A-Z)
!(code > 96 && code < 123)) { // lower alpha (a-z)
return false;
}
}
return true;
};
Of course, there may be other considerations, such as readability. A one-line regular expression is definitely prettier to look at. But if you're ...
Find all tables containing column with specified name - MS SQL Server
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AdaTheDevAdaTheDev
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Converting a string to int in Groovy
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Several ways to do it, this one's my favorite:
def number = '123' as int
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Find the most frequent number in a numpy vector
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ApogentusApogentus
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How do I change db schema to dbo
...ther case when you want to be precise about a SQL object name. [domain\user123].TableName.
– Remus Rusanu
Nov 6 '19 at 9:46
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Is there a predefined enumeration for Month in the .NET library?
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@guillegr123 How would you suggest that I go about proving a negative?
– David Nelson
Nov 21 '12 at 20:57
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How to select rows with no matching entry in another table?
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AdaTheDevAdaTheDev
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