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Should a retrieval method return 'null' or throw an exception when it can't produce the return value
...ts you to throw an exception
provide an extra parameter, so the caller can set a value which he gets back if no value is found
Or you might combine these options:
Provide several overloaded versions of your getter, so the caller can decide which way to go. In most cases, only the first one has an...
How to use Git for Unity3D source control?
...se describe the workflow, what paths would be included in .gitignore, what settings should be set in Unity and/or the project, and any other special things that should be noted.
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JUnit test for System.out.println()
...
using ByteArrayOutputStream and System.setXXX is simple:
private final ByteArrayOutputStream outContent = new ByteArrayOutputStream();
private final ByteArrayOutputStream errContent = new ByteArrayOutputStream();
private final PrintStream originalOut = System.out;...
C++ Erase vector element by value rather than by position? [duplicate]
and lets say the values in the vector are this (in this order):
4 Answers
4
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LinkedBlockingQueue vs ConcurrentLinkedQueue
...y in many contexts (scenarios of low/medium contention), doing compare-and-sets on atomic references can be much more efficient and this is exactly what many non-blocking data-structures are doing.
Java's ConcurrentLinkedQueue is not only non-blocking, but it has the awesome property that the produ...
Adding a regression line on a ggplot
...ginal dataframe (in your case data).
It would look like this:
# read dataset
df = mtcars
# create multiple linear model
lm_fit <- lm(mpg ~ cyl + hp, data=df)
summary(lm_fit)
# save predictions of the model in the new data frame
# together with variable you want to plot against
predicted_df &...
Linq style “For Each” [duplicate]
Is there any Linq style syntax for "For each" operations?
6 Answers
6
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Save image from URL by paperclip
Please suggest me a way to save an image from an URL by Paperclip.
8 Answers
8
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Does every Javascript function have to return a value?
... editor after snippets, if snippets enabled
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Differences between hard real-time, soft real-time, and firm real-time?
...ity control and not too costly, then production continues.
A digital cable set-top box decodes time stamps for when frames must appear on the screen. Since the frames are time order sensitive a missed deadline causes jitter, diminishing quality of service. If the missed frame later becomes available...