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Java: difference between strong/soft/weak/phantom reference
...ded into soft and phantom.
Strong
Weak
soft
phantom
Let's go point by point.
Strong Reference Object
StringBuilder builder = new StringBuilder();
This is the default type/class of Reference Object, if not differently specified: builder is a strong Reference Object. This kind of reference...
What is the difference between buffer and cache memory in Linux?
...ounts of blocks. What happens is that the cache gets filled up as reported by free -w -h, not the buffers column. I think the cache column counts both disk writes and disk reads and buffers is used for something else.
– CMCDragonkai
Sep 25 '18 at 5:08
...
What does “export” do in shell programming? [duplicate]
...can tell, variable assignment is the same whether it is or is not preceded by "export". What's it for?
3 Answers
...
Long vs Integer, long vs int, what to use and when?
... long, is not an Object.
Another difference is that long and int are pass-by-value, whereas Long and Integer are pass-by-reference value, like all non-primitive Java types. So if it were possible to modify a Long or Integer (it's not, they're immutable without using JNI code), there would be anothe...
How to deploy an ASP.NET Application with zero downtime
...ting in a "half-way" or
corrupted state. In MS Deploy, TxF is
disabled by default.
It seems the transaction is for the entire sync. Also, TxF is a feature of Windows Server 2008, so this transaction feature will not work with earlier versions.
I believe it's possible to modify your script for...
Difference between CC, gcc and g++?
...ompiler names ('acc' IIRC). Similarly, on AIX, the system C compiler goes by names such as 'xlc' or 'xlc32'.
Classically, the default system compiler was called 'cc' and self-configuring software falls back on that name when it doesn't know what else to use.
POSIX attempted to legislate its way a...
Why should I avoid using Properties in C#?
...
Well, lets take his arguments one by one:
A property may be read-only or
write-only; field access is always
readable and writable.
This is a win for properties, since you have more fine-grained control of access.
A property method may throw an
...
SQL Server indexes - ascending or descending, what difference does it make?
...l1, col2 DESC);
can be used for either:
SELECT *
FROM mytable
ORDER BY
col1, col2 DESC
or:
SELECT *
FROM mytable
ORDER BY
col1 DESC, col2
, but not for:
SELECT *
FROM mytable
ORDER BY
col1, col2
An index on a single column can be efficiently used for so...
How to remove a lua table entry by its key?
...ly using it within a single block, you be even better off performance-wise by simply making it a local function instead (saves the overhead of a global lookup for each call). I quite often import table.insert and table.remove into the local namespace if I'm using them frequently, often as something ...
jquery, find next element by class
How can i find the next element by class.
3 Answers
3
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