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JUnit confusion: use 'extends TestCase' or '@Test'?
...Unit 4)
using the @Test annotation is the way introduced by JUnit 4
Generally you should choose the annotation path, unless compatibility with JUnit 3 (and/or a Java version earlier than Java 5) is needed. The new way has several advantages:
The @Test annotaton is more explicit and is easier to ...
How to inject dependencies into a self-instantiated object in Spring?
...
This is actually a bad pattern. If this is how you really use MyBean why not just have constructor with AnotherBean as parameter. Something like: code private @Autowired AnotherBean bean; public void doStuff() { MyBean obj = new M...
How to overload the operator++ in two different ways for postfix a++ and prefix ++a?
...t, postfix is much better. An example would be an iterator where you typically use: for(pos=c.begin(); ...; ++pos) {} instead of pos++
– Eric
Oct 2 '10 at 16:28
...
what's data-reactid attribute in html?
...ct applications can be rendered at the server as well as the client. Internally React builds up a representation of references to the DOM nodes that make up your application (simplified version is below).
{
id: '.1oqi7occu80',
node: DivRef,
children: [
{
id: '.1oqi7occu80.0',
...
What is private bytes, virtual bytes, working set?
...se values are a reliable indicator of how much memory an executable is actually using, and none of them are really appropriate for debugging a memory leak.
Private Bytes refer to the amount of memory that the process executable has asked for - not necessarily the amount it is actually using. They ...
How do I spool to a CSV formatted file using SQLPLUS?
...tion on IDs)
spool myfile.csv
select table_name, tablespace_name
from all_tables
where owner = 'SYS'
and tablespace_name is not null;
Output will be like:
TABLE_PRIVILEGE_MAP ,SYSTEM
SYSTEM_PRIVILEGE_MAP ,SYSTEM
...
What's the best way to join on the same table twice?
...a fan of natural keys and this is a great example why. Natural keys, especially things like phone numbers, can change and frequently so. Updating your database when that change happens will be a HUGE, error-prone headache. *
Method 1 as you describe it is your best bet though. It looks a bit terse ...
Objective-C : BOOL vs bool
..., you can assume that BOOL is a char. You can use the (C99) bool type, but all of Apple's Objective-C frameworks and most Objective-C/Cocoa code uses BOOL, so you'll save yourself headache if the typedef ever changes by just using BOOL.
...
Groovy: what's the purpose of “def” in “def x = 0”?
...e bindings for the current script and groovy treats it (mostly) like a globally scoped variable:
x = 1
assert x == 1
assert this.binding.getVariable("x") == 1
Using the def keyword instead does not put the variable in the scripts bindings:
def y = 2
assert y == 2
try {
this.binding.getVari...
What is the Invariant Culture?
... be read and written regardless of the culture the user has defined.
Basically it is a specific culture that is artificial and will not change.
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