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What is the difference between a schema and a table and a database?
...ables.
– Jon Skeet
Nov 18 '08 at 14:01
1
@Ian: don't forget that a database will also have constr...
String replacement in java, similar to a velocity template
...
Use StringSubstitutor from Apache Commons Text.
https://commons.apache.org/proper/commons-text/
It will do it for you (and its open source...)
Map<String, String> valuesMap = new HashMap<String, String>();
valuesMap.put("animal", "quick brown...
Disable soft keyboard on NumberPicker
...Only the programmatic version worked for me with androidx 1.2.0-rc2, and I combined it with isClickable=true and isFocusable=true (Kotlin)
– hgoebl
Jul 25 at 5:33
add a commen...
How do I clone a generic List in Java?
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321
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How can I autoformat/indent C code in vim?
...ng keystrokes:
gg=G
Explanation: gg goes to the top of the file, = is a command to fix the indentation and G tells it to perform the operation to the end of the file.
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How to use the toString method in Java?
... informative representation that is
easy for a person to read. It is
recommended that all subclasses
override this method.
The toString method for class Object
returns a string consisting of the
name of the class of which the object
is an instance, the at-sign character
`@', and ...
How to send email attachments?
...MIMEMultipart
from email.mime.text import MIMEText
from email.utils import COMMASPACE, formatdate
def send_mail(send_from, send_to, subject, text, files=None,
server="127.0.0.1"):
assert isinstance(send_to, list)
msg = MIMEMultipart()
msg['From'] = send_from
msg['To'...
Get number of digits with JavaScript
...er) {
return number.toString().length;
}
UPDATE: As discussed in the comments, the above example won't work for float numbers. To make it working we can either get rid of a period with String(number).replace('.', '').length, or count the digits with regular expression: String(number).match(/\d...
Why is Scala's immutable Set not covariant in its type?
...
at http://www.scala-lang.org/node/9764 Martin Odersky writes:
"On the issue of sets, I believe the non-variance stems also from the implementations. Common sets are implemented as hashtables, which are non-variant arrays of the key...
Why does Java's hashCode() in String use 31 as a multiplier?
Per the Java documentation, the hash code for a String object is computed as:
13 Answers
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