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How to get a reversed list view on a list in Java?
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Its not exactly elegant, but if you use List.listIterator(int index) you can get a bi-directional ListIterator to the end of the list:
//Assume List<String> foo;
ListIterator li = foo.listIterator(foo.size());
while (li.hasPrevious()) {
String curr = li.previous()
}
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How to set child process' environment variable in Makefile
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I have GNU make 3.81, and all: <\n\t>export PROJ_ROOT=$(CURDIR)<\n\t>echo $(PROJ_ROOT)<\n> outputs the correct expansion for the first row, but only echo for the second one. PROJ_ROOT is not set after running make. Spaces around = gi...
Can git undo a checkout of unstaged files
...ly "private".
Meaning it cannot be restored by GIT if overwritten with the index or the HEAD version (unless you have a copy of your current work somewhere).
A "private" content is one only visible in your current directory, but not registered in any way in Git.
Note: As explained in other answers, ...
How to run code when a class is subclassed? [duplicate]
...- Watcher subclasses type, not object. 2 - SuperClass has no superclass at all, not object. I'm just so used to writing down object as a superclass for every class I defined that I somehow missed it that this code was using something else. Although there doesn't seem to be any harm in making SuperCl...
How to take backup of a single table in a MySQL database?
...r reference:
http://www.abbeyworkshop.com/howto/lamp/MySQL_Export_Backup/index.html
Restore
mysql -u <user_name> -p db_name
mysql> source <full_path>/table_name.sql
or in one line
mysql -u username -p db_name < /path/to/table_name.sql
Dump and restore a single table from ...
How to set environment variables in Python?
I need to set some environment variables in the Python script and I want all the other scripts that are called from Python to see the environment variables' set.
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Restoring Nuget References?
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Try re-installing the packages.
In the NuGet Package Manager Console enter the following command:
Update-Package -Reinstall -ProjectName Your.Project.Name
If you want to re-install packages and restore references for the whole soluti...
When is “i += x” different from “i = i + x” in Python?
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This depends entirely on the object i.
+= calls the __iadd__ method (if it exists -- falling back on __add__ if it doesn't exist) whereas + calls the __add__ method1 or the __radd__ method in a few cases2.
From an API perspective, __iadd__ is supposed to be used fo...
What is the size of an enum in C?
...set of enum values, but I need each enum value to be 64 bits wide. If I recall correctly, an enum is generally the same size as an int; but I thought I read somewhere that (at least in GCC) the compiler can make the enum any width they need to be to hold their values. So, is it possible to have an e...
Shared-memory objects in multiprocessing
... some other parameters). func with different parameters can be run in parallel. For example:
4 Answers
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