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applicationWillEnterForeground vs. applicationDidBecomeActive, applicationWillResignActive vs. appli
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Revise some descriptions and links, 2019 for now.
– tomjpsun
Sep 20 '19 at 2:56
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How should I have explained the difference between an Interface and an Abstract class?
...implementation of this only:
public abstract void checkDBforUser();
}
Now in each child class, we only need to implement one method - the method that is database dependent.
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There is already an open DataReader associated with this Command which must be closed first
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I have had this error so many times now... and every time I forget! The answer to the question is always to use ToList().
– Cheesus Toast
Jul 21 '15 at 19:24
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How to compare strings in Bash
... true.
(
[ "$x" == "valid" ]
&&
echo "valid"
)
||
echo "invalid"
Now, when it is evaluated, the first is checked. If it is false, than the second operand of the logic and && after it is not relevant. The first is not true, so it can not be the first and the second be true, anyway.
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How do I get the path of the assembly the code is in?
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Did not know you could put static before public. Nice to know and i think i prefer for readability
– Valamas
Jul 3 '13 at 4:27
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outline on only one border
...nset border into an HTML element, but just only on one side of it.
Until now, I've been using an image to do that (GIF/PNG) that I would then use as a background and stretch it (repeat-x) and position a little off from the top of my block.
Recently, I discovered the outline CSS property, which i...
Why is using the rails default_scope often recommend against?
...WHERE "posts"."published" = 't'
Well this is pretty much what we expect. Now lets try:
2.1.1 :004 > Post.new
=> #<Post id: nil, title: nil, published: true, created_at: nil, updated_at: nil>
And there we have the first big problem with default scope:
=> default_scope will aff...
Visual Studio 2012 - Intellisense sometimes disappearing / broken
My colleagues and I are using VS2012 for some weeks now. Sometimes after working several hours the intellisense is broken. After closing all open tabs it works again.
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How to save and load cookies using Python + Selenium WebDriver
...ns that check for human interaction, I do this and then the cookies I need now every-time I start the Webdriver with that folder everything is in there. You can also manually install the Extensions and have them in every session.
Secon time I run, all the cookies are there:
chrome_options = Options...
Finish an activity from another activity
...ect like this,
public static Activity fa;
onCreate()
{
fa = this;
}
now use that object in another Activity to finish first-activity like this,
onCreate()
{
FirstActivity.fa.finish();
}
SECOND WAY
While calling your activity FirstActivity which you want to finish as soon as you move o...