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Why should C++ programmers minimize use of 'new'?
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@Charlie : The class internals need to be set up either way. The comparison is being made on allocating the space required.
– Oliver Charlesworth
Jun 28 '11 at 0:36
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Android Studio: Add jar as library?
...'libs/<your jar's name here>')
}
Android Studio should have already setup a gradlew wrapper. From the command line, navigate to the top level of your project (the directory that has a gradlew file).
Run ./gradlew assemble. This should compile the project with the library. You may need to fix...
How to use SSH to run a local shell script on a remote machine?
... ARG1=$ARG1 ARG2=$ARG2 'bash -s' <<'ENDSSH'...
In this case we are setting ARG1 and ARG2 to local values. Sending everything after user@host as the remote_command. When the remote machine executes the command ARG1 and ARG2 are set the local values, thanks to local command line evaluation, w...
What resources are shared between threads?
...at:
processes are typically independent, while threads exist as subsets of a
process
processes carry considerable state information, whereas multiple threads
within a process share state as well
as memory and other resources
processes have separate address spaces, whereas threads s...
Best practice to call ConfigureAwait for all server-side code
...d the default behavior discard context if in a library? Or have a compiler setting for the default context behavior? Both of these were rejected because it's harder to just read the code and tell what it does.
– Stephen Cleary
May 8 '14 at 20:32
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How to click or tap on a TextView text
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You can set the click handler in xml with these attribute:
android:onClick="onClick"
android:clickable="true"
Don't forget the clickable attribute, without it, the click handler isn't called.
main.xml
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<TextVie...
Why do people say that Ruby is slow? [closed]
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@Kevin That statement is a bit broad. If you'd need to set up a new server for every 10% traffic increase or so with some 100 visits per day, the customer would clearly have a right to complain. Realistically though, you usually need to have a lot more traffic to begin with and i...
How to “git show” a merge commit with combined diff output even when every changed file agrees with
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You can create branch with HEAD set to one commit before merge. Then, you can do:
git merge --squash testing
This will merge, but not commit. Then:
git diff
share
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Git push branch from one remote to another?
I have the following remotes set up:
6 Answers
6
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Mutable vs immutable objects
...tring> map = ...
Person p = new Person();
map.put(p, "Hey, there!");
p.setName("Daniel");
map.get(p); // => null
The Person instance gets "lost" in the map when used as a key because its hashCode and equality were based upon mutable values. Those values changed outside the map and al...