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Example for sync.WaitGroup correct?
...ted result, but I am unsure about the wg.Add(4) and the position of wg.Done() . Does it make sense to add the four goroutines at once with wg.Add() ?
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How can I check a C# variable is an empty string “” or null? [duplicate]
... a check. I have a variable that can be equal to "" or null. Is there just one function that can check if it's not "" or null?
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How do you find the last day of the month? [duplicate]
... best way at the moment. In 2.0 you could use a DateAdjuster - there isn't one for LastDayOfMonth at the moment, but I might add one tonight :)
– Jon Skeet
Jan 30 '15 at 18:11
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Android: When is onCreateOptionsMenu called during Activity lifecycle?
I put a couple of breakpoints in onCreate (one at the beginning, and one at the end of the method), and I also put one at the beginning of onCreateOptionsMenu . The onCreate method is called first, and before it finishes onCreateOptionsMenu is called.
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convert pfx format to p12
...o .p12 to use in another application. I cant find a way to do this. Can anyone suggest a method?
5 Answers
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Convert String to double in Java
... of the text from the string that you want to parse for the double. Here's one way you could do it for your case, though I can't guarantee it will work for everything: double total = Double.parseDouble(jlbTotal.getText().replaceAll("[^0-9.]", "")); - this basically replaces all characters that aren'...
Why use a READ UNCOMMITTED isolation level?
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This isolation level allows dirty reads. One transaction may see uncommitted changes made by some other transaction.
To maintain the highest level of isolation, a DBMS usually acquires locks on data, which may result in a loss of concurrency and a high locking over...
Extracting hours from a DateTime (SQL Server 2005)
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try this one too:
DATEPART(HOUR,GETDATE())
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What is the equivalent of bigint in C#?
...uates to a decimal type. Using a long will cause a cast exception.
This is one reason to check your answers in more than one Google search (or even on Stack Overflow!).
To quote a database administrator who helped me out:
... BigInt is not the same as INT64 no matter how much they look alike. Part ...
Difference Between Cohesion and Coupling
...re toward each other. For low coupled classes, changing something major in one class should not affect the other. High coupling would make it difficult to change and maintain your code; since classes are closely knit together, making a change could require an entire system revamp.
Good software des...