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What's a monitor in Java?
...ject) {
// do something else (2)
}
}
This prevents Threads 1 and 2 accessing the monitored (synchronized) section at the same time. One will start, and monitor will prevent the other from accessing the region before the first one finishes.
It's not a special object. It's synchronizati...
When would anyone use a union? Is it a remnant from the C-only days?
...pace to work with, or when you're developing an API (or something similar) and you want to force the end user to have only one instance of several objects/types at one time. Are these two guesses even close to right?
...
Setting default permissions for newly created files and sub-directories under a directory in Linux?
I have a bunch of long-running scripts and applications that are storing output results in a directory shared amongst a few users. I would like a way to make sure that every file and directory created under this shared directory automatically had u=rwxg=rwxo=r permissions.
...
How do I get the row count of a pandas DataFrame?
I'm trying to get the number of rows of dataframe df with Pandas, and here is my code.
14 Answers
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Scala: What is a TypeTag and how do I use it?
...hat they somehow replaced Manifests. Information on the Internet is scarce and doesn't provide me with a good sense of the subject.
...
Why must a nonlinear activation function be used in a backpropagation neural network? [closed]
I've been reading some things on neural networks and I understand the general principle of a single layer neural network. I understand the need for aditional layers, but why are nonlinear activation functions used?
...
filters on ng-model in an input
I have a text input and I don't want to allow users to use spaces, and everything typed will be turned into lowercase.
8 An...
Can I find out the return value before returning while debugging in Intellij?
...oint on Object method(){ . This will allow you to watch for the entrance and exit of the method. I believe you have to use this in conjunction with "Watch method return values" like stated above, but I haven't been able to completely test this as it takes too long to compute. Beware, this does dr...
How to create a checkbox with a clickable label?
...ince the other answers don't mention it, a label can include up to 1 input and omit the for attribute, and it will be assumed that it is for the input within it.
Excerpt from w3.org (with my emphasis):
[The for attribute] explicitly associates the label being defined with another control. When pres...
Practical uses of git reset --soft?
...
git reset is all about moving HEAD, and generally the branch ref.
Question: what about the working tree and index?
When employed with --soft, moves HEAD, most often updating the branch ref, and only the HEAD.
This differ from commit --amend as:
it doesn't cre...