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How to implement a tree data-structure in Java? [closed]
Is there any standard Java library class to represent a tree in Java?
24 Answers
24
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Invoke(Delegate)
...Controls work
Controls in Windows Forms are bound to a specific thread and are not
thread safe. Therefore, if you are calling a control's method from a
different thread, you must use one of the control's invoke methods to
marshal the call to the proper thread. This property can be used to
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What and where are the stack and heap?
...amming language books explain that value types are created on the stack , and reference types are created on the heap , without explaining what these two things are. I haven't read a clear explanation of this. I understand what a stack is. But,
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JavaScript error (Uncaught SyntaxError: Unexpected end of input)
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The lesson is, always indent your code (and indent it correctly).
– SLaks
Oct 20 '10 at 23:29
4
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Microsoft.WebApplication.targets was not found, on the build server. What's your solution?
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Building and publishing WAPs is not supported if VS is not installed. With that said, if you really do not want to install VS then you will need to copy all the files under %ProgramFiles32%\MSBuild\Microsoft\.
You will need to insta...
How can I get a side-by-side diff when I do “git diff”?
...ent ways to specify an external diff tool:
setting the GIT_EXTERNAL_DIFF and the GIT_DIFF_OPTS environment variables.
configuring the external diff tool via git config
See also:
https://git-scm.com/book/en/v2/Customizing-Git-Git-Configuration
git diff --help
http://www.pixelbeat.org/programmin...
Android ListView not refreshing after notifyDataSetChanged
...Menu(true);
getActivity().setTitle(TITLE);
dbHelper = new DatabaseHandler(getActivity());
adapter = new ItemAdapter(getActivity(), dbHelper.getItems());
setListAdapter(adapter);
}
3) add method in ItemAdapter:
public void swapItems(List<Item> items) {
this.items = items;...
Why does MYSQL higher LIMIT offset slow the query down?
...down, since the query needs to count off the first OFFSET + LIMIT records (and take only LIMIT of them). The higher is this value, the longer the query runs.
The query cannot go right to OFFSET because, first, the records can be of different length, and, second, there can be gaps from deleted recor...
How do you save/store objects in SharedPreferences on Android?
... @rozina yes Gson is better. First of all to use serialize, the object and every object inside it needs to implement the serialize interface. This is not needed for gson. gson also works great when your object is a list of objects.
– Neville Nazerane
Jan 19...
Are GUID collisions possible?
...with the same GUID. I know that microsoft uses an algorithm to generate a random GUID that has an extremely low chance of causing collisons, but is a collision still possible?
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