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Are non-synchronised static methods thread safe if they don't modify static class variables?
...lity, etc.
This method only operates on parameters, which reside on stack and references to immutable objects on heap. Stack is inherently local to the thread, so no sharing of data occurs, ever.
Immutable objects (String in this case) are also thread-safe because once created they can't be change...
Create or write/append in text file
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Yup it create the text file logs.txt and append the content in it
– SpencerX
Jul 26 '14 at 15:21
5
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Xml Namespace breaking my xpath! [duplicate]
... there my xPath finds nothing
If you cannot register a namespace binding and cannot use (assuming the registered prefix is "x"):
/x:List/x:Fields/x:Field
then there is another way:
/*[name()='List']/*[name()='Fields']/*[name()='Field']
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What's the @ in front of a string in C#?
...string verbatim = @"foo\bar";
string regular = "foo\\bar";
Here verbatim and regular have the same contents.
It also allows multi-line contents - which can be very handy for SQL:
string select = @"
SELECT Foo
FROM Bar
WHERE Name='Baz'";
The one bit of escaping which is necessary for verbatim s...
When should I use the Visitor Design Pattern? [closed]
...dmit, I just don't get it. I read the wikipedia article for the pattern and I understand its mechanics but I'm still confused as to when I'd use it.
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Including jars in classpath on commandline (javac or apt)
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Note for Windows users, the jars should be separated by ; and not :.
for example:
javac -cp external_libs\lib1.jar;other\lib2.jar;
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Runtime vs. Compile time
What is the difference between run-time and compile-time?
28 Answers
28
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A field initializer cannot reference the nonstatic field, method, or property
I have a class and when I try to use it in another class I receive the error below.
4 Answers
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What characters are allowed in an email address?
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See RFC 5322: Internet Message Format and, to a lesser extent, RFC 5321: Simple Mail Transfer Protocol.
RFC 822 also covers email addresses, but it deals mostly with its structure:
addr-spec = local-part "@" domain ; global address
local-part ...
Safest way to convert float to integer in python?
Python's math module contain handy functions like floor & ceil . These functions take a floating point number and return the nearest integer below or above it. However these functions return the answer as a floating point number. For example:
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