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How do I add indices to MySQL tables?
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pabloferrazpabloferraz
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How to select/get drop down option in Selenium 2
...elect(driver.findElement(By.xpath("//path_to_drop_down")));
select.deselectAll();
select.selectByVisibleText("Value1");
To get the first selected value:
WebElement option = select.getFirstSelectedOption()
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How do I implement an Objective-C singleton that is compatible with ARC?
...n;
dispatch_once(&onceToken, ^{
sharedInstance = [[MyClass alloc] init];
// Do any other initialisation stuff here
});
return sharedInstance;
}
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Best way to change the background color for an NSView
...t—it won't composite on top of any ancestor views. For fills with a partially- (or fully-)transparent color, use NSRectFillUsingOperation developer.apple.com/mac/library/documentation/Cocoa/Reference/… with the NSCompositeSourceOver operation.
– Peter Hosey
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Can table columns with a Foreign Key be NULL?
...d Mar 2 '10 at 21:37
Daniel VassalloDaniel Vassallo
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How do I clear a search box with an 'x' in bootstrap 3?
...efox users could instead select the text and press delete, or...
If you really need this nice-to-have feature supported in Firefox, then you could implement one of the other solutions posted here as a polyfill for input[type=search] elements. A polyfill is code that automatically adds a standard br...
How do I protect Python code? [closed]
...ecutable is well-known, and the Python byte-codes are well understood.
Usually in cases like this, you have to make a tradeoff. How important is it really to protect the code? Are there real secrets in there (such as a key for symmetric encryption of bank transfers), or are you just being paranoi...
How does the static modifier affect this code?
...hases take place: 1. Identification, 2. Execution
In identification phase all static variables are detected and initialized with default values.
So now the values are:
A obj=null
num1=0
num2=0
The second phase, execution, starts from top to bottom. In Java, the execution starts from the first stat...
Make $JAVA_HOME easily changable in Ubuntu [closed]
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answered May 13 '11 at 15:15
Martin KonicekMartin Konicek
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What is the difference between String and string in C#?
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string is an alias in C# for System.String.
So technically, there is no difference. It's like int vs. System.Int32.
As far as guidelines, it's generally recommended to use string any time you're referring to an object.
e.g.
string place = "world";
Likewise, I think it's g...