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Eclipse says: “Workspace in use or cannot be created, chose a different one.” How do I unlock a work
...e cause of the “Workspace in use or cannot be created, chose a different one” issue is that the real path to your workspace may have changed.
In my case, the real location of the workspace had changed, but I had used a symlink to make it look like it was in the same location. I saw errors in l...
How to detect a Christmas Tree? [closed]
...with many of the other answers, I assumed that the Christmas tree would be one of the brighter objects in the scene, so the first threshold is just a simple monochrome brightness test; any pixels with values above 220 on a 0-255 scale (where black is 0 and white is 255) are saved to a binary black-a...
Who is “us” and who is “them” according to Git?
... "ours" branch being the upstream branch and the "theirs" branch being the one being rebased. But I agree it's, well, "extremely unhelpful" seems like a polite way to put it. I'd much rather have the branches labeled by some other words than "us/ours" and "them/theirs", perhaps by branch-name for ...
How is Docker different from a virtual machine?
... you can have a read only part and a write part which are merged together. One could have the common parts of the operating system as read only (and shared amongst all of your containers) and then give each container its own mount for writing.
So, let's say you have a 1 GB container image; if you ...
What does `m_` variable prefix mean?
...ssumed to be getName/setName, so getM_name is bad and you need handle them one by one.
– Leon
Jan 11 '19 at 5:53
Thank...
How does the compilation/linking process work?
...of the syntax of C++, which is why it must be used with care.
It works on one C++ source file at a time by replacing #include directives with the content of the respective files (which is usually just declarations), doing replacement of macros (#define), and selecting different portions of text dep...
How to find the duration of difference between two dates in java?
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This answer ignores time zones which define the beginning and ending of days. This answer ignores Daylight Saving Time and other anomalies that mean a day is not always 24 hours in length. See the correct answers that use either Joda-Time or java.time...
What's the difference between SoftReference and WeakReference in Java?
...renced by a SoftReference if there isn't pressure on the available memory. One detail: the policy for the "-client" and "-server" JRE's are different: the -client JRE tries to keep your footprint small by preferring to clear SoftReferences rather than expand the heap, whereas the -server JRE tries t...
Class does not implement its superclass's required members
... the point of this class. This class simply cannot be instantiated without one. It is going to analyze the collection and initialize a dozen instance variables. That is the whole point of this being the one and only designated initializer! Thus, init(coder:) has no meaningful (or even meaningless) M...
Which Radio button in the group is checked?
...t be necessary. When you check a different RadioButton then it knows which one to uncheck… so it should know which is checked. How do I pull that information without doing a lot of if statements (or a switch).
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