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ViewController respondsToSelector: message sent to deallocated instance (CRASH)
... hate putting out questions about my debugging and crashes. Because I usually handle them myself, but I just cannot get my way around this, even after viewing multiple questions already .
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Data access object (DAO) in Java
I was going through a document and I came across a term called DAO . I found out that it is a Data Access Object. Can someone please explain me what this actually is?
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What's is the difference between include and extend in use case diagram?
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@Blaze - All parts of the login flow, including those steps.
– Doug Knesek
Jan 21 '15 at 19:09
1
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Word wrapping in phpstorm
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For all files (default setting for opened file): Settings/Preferences | Editor | General | Use soft wraps in editor
For currently opened file in editor: Menu | View | Active Editor | Use Soft Wraps
In latest IDE versions you ...
How does Go compile so quickly?
... whole VM, then they have to be JIT-compiled from bytecode to native code, all of which takes some time.
Speed of compilation depends on several factors.
Some languages are designed to be compiled fast. For example, Pascal was designed to be compiled using a single-pass compiler.
Compilers itself...
Can inner classes access private variables?
...ct of the parent class. You have to make the parent child relationship manually.
#include <string>
#include <iostream>
class Outer
{
class Inner
{
public:
Inner(Outer& x): parent(x) {}
void func()
{
std::string a =...
How to count number of files in each directory?
I am able to list all the directories by
17 Answers
17
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What is object slicing?
...uestions/274626#274636 for an example of how slicing occurs during method calls (which underscores the danger a little better than the plain assignment example).
– Blair Conrad
Nov 8 '08 at 13:53
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How do short URLs services work?
... site that is redirected to will see the referrer (the site that you originally come from) as being the site the TinyUrl link is on (i.e., twitter.com, your own site, wherever the link is). This is just as important, so that site owners can see where people are coming from. This too, would not work ...
Most efficient way to cast List to List
...ot behave the same as arrays in Java. Arrays are covariant; that is, it is allowed to do this:
SubClass[] subs = ...;
BaseClass[] bases = subs;
This is allowed, because the array "knows" the type of its elements. If someone attempts to store something that isn't an instance of SubClass in the arr...