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Why do this() and super() have to be the first statement in a constructor?
Java requires that if you call this() or super() in a constructor, it must be the first statement. Why?
19 Answers
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custom listview adapter getView method being called multiple times, and in no coherent order
..., there is absolutely no guarantee on the order in which getView() will be called nor how many times. In your particular case you are doing the worst thing possible with a ListView by giving it a height=wrap_content. This forces ListView to measure a few children out of the adapter at layout time, t...
Delete text in between HTML tags in vim?
... And the Surround plugin (vim.org/scripts/script.php?script_id=1697) is awesome when you want to do things like change the surrounding tag (cst) from a <p> to a <div>, for example.
– Kris Jenkins
Nov 21 '10 at 12:45
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Class method differences in Python: bound, unbound and static
...In Python, there is a distinction between bound and unbound methods.
Basically, a call to a member function (like method_one), a bound function
a_test.method_one()
is translated to
Test.method_one(a_test)
i.e. a call to an unbound method. Because of that, a call to your version of method_two...
Timeout on a function call
I'm calling a function in Python which I know may stall and force me to restart the script.
18 Answers
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Clojure differences between Ref, Var, Agent, Atom, with examples
...pdate, this is a very common case.
Synchronous access is used when the call is expected to wait until all Identities have settled before continuing.
Asynchronous access is "fire and forget" and let the Identity reach its new state in its own time.
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Java Swing revalidate() vs repaint()
...on where I often want to replace the contents of a JPanel. To do this, I'm calling removeAll() , then adding my new content, then calling revalidate() .
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解决：Run-Time Check Failure #0，The value of ESP was not properly sav...
...eck Failure #0 - The value of ESP was not properly saved across a function call. ...调用DLL函数，出现错误
Run-Time Check Failure #0 - The value of ESP was not properly saved across a function call. This is usually a result of calling a function declared with one calling convention with a f...
c++11 std::call_once只调用一次函数，类似单例模式 - C/C++ - 清泛网 - 专...
c++11 std::call_once只调用一次函数，类似单例模式std_call_oncestd::call_once 保证函数或者一些代码段在并发或者多线程的情况下，始终只会被执行一次，Demo如下： include <iostream> include <thread>static std::once_flag g_once_flag std::call_once 保证...
Pull all commits from a branch, push specified commits to another
...re looking for is a 'cherry pick'. That is, take a single commit from the middle of one branch and add it to another:
A-----B------C
\
\
D
becomes
A-----B------C
\
\
D-----C'
This, of course, can be done with the git cherry-pick command.
The problem with this commit is that git co...