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Missing return statement in a non-void method compiles
...eption();
}
That's a non-void method. It has to be a non-void method in order to satisfy the interface. But it seems silly to make this implementation illegal because it does not return anything.
That your method has an unreachable end point because of a goto (remember, a while(true) is just a ...
On design patterns: When should I use the singleton?
...ler. Your application should only have a single instance of the spooler in order to avoid conflicting request for the same resource.
Or a database connection or a file manager etc.
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Unique random string generation
...ose from the entire allowedCharSet, ignore
// the value in order to avoid biasing the result.
var outOfRangeStart = byteSize - (byteSize % allowedCharSet.Length);
if (outOfRangeStart <= buf[i]) continue;
result.Append(allowedCharSet[...
Detect If Browser Tab Has Focus
... API without a prefix for a while now. I kept Microsoft specific prefix in order to stay compatible with IE10.
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Select last N rows from MySQL
... is primary key . Goal is that the rows should be sorted by id in ASC order, that’s why this query isn’t working
...
Android: Scale a Drawable or background image?
....: I'm also not scrolling in my case.) What would I augment bitmap with in order to scale the image?
– Joe D'Andrea
Feb 27 '12 at 4:10
7
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What is the difference between Builder Design pattern and Factory Design pattern?
...en the two more clear.
Suppose, you went to a fast food restaurant and you ordered Food.
1) What Food?
Pizza
2) What toppings?
Capsicum, Tomato, BBQ chicken, NO PINEAPPLE
So different kinds of foods are made by Factory pattern but the different variants(flavors) of a particular food are made by Buil...
What must I know to use GNU Screen properly? [closed]
...ing to split my terminal. I didn't realize I needed to run screen first in order to get any of these commands to work, silly, I know.
– Ogaday
Nov 3 '15 at 11:49
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What are the rules for evaluation order in Java?
...me say this very clearly, because people misunderstand this all the time:
Order of evaluation of subexpressions is independent of both associativity and precedence. Associativity and precedence determine in what order the operators are executed but do not determine in what order the subexpressions ...
What's the $unwind operator in MongoDB?
...g and obtaining the data from your storage locations.
That being said, in order to understand the concept behind the $unwind parameter, you first must understand what the use case that you are trying to quote is saying. The example document from mongodb.org is as follows:
{
title : "this is my ti...