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How to set Java environment path in Ubuntu
... java
java: /usr/bin/java /usr/share/java /usr/share/man/man1/java.1.gz
Now dig deeper-
$ ls -l /usr/bin/java
lrwxrwxrwx 1 root root 46 Aug 25 2018 /etc/alternatives/java -> /usr/lib/jvm/java-8-openjdk-amd64/jre/bin/java
Dig deeper:
$ ls -l /usr/lib/jvm/java-8-openjdk-amd64/jre/bin/java
...
Controlling a USB power supply (on/off) with Linux
... USB power management from kernels 2.6.32, which seem to settle in 2.6.38. Now you'll need to wait for the device to become idle, which is governed by the particular device driver. The driver needs to support it, otherwise the device will never reach this state. Unluckily, now the user has no chance...
How do I truncate a .NET string?
...Length <= maxLength ? value : value.Substring(0, maxLength);
}
}
Now we can write:
var someString = "...";
someString = someString.Truncate(2);
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Xcode iOS 8 Keyboard types not supported
I have a UITextField Ctrl-dragged as an @Outlet in my .swift class.
Now in viewDidLoad i'm using this code
10 Answe...
Passing arrays as parameters in bash
...
This answer helped me solve an issue just now. However, I wanted to point out that on my machine (using bash 4.3.42) the "${!1}" and "${!2}" need to have the quotes removed. If you do not, the value of the original array is read as one string and assigned to argAry1[...
Syntax for creating a two-dimensional array
...s. The rows and the elements in each row should be separated by a commas.
Now observe the statement: you can get there are 3 rows and 5 columns, so the JVM creates 3 * 5 = 15 blocks of memory. These blocks can be individually referred ta as:
marks[0][0] marks[0][1] marks[0][2] marks[0][3] mark...
Django South - table already exists
...re is more than one field missing you have to repeat it for each field.
3.Now you land with a bunch of new migrations so remove their files from myapp/migrations (0011 and further if you needed to add multiple fields).
4.Run this:
./manage.py migrate myapp 0010
Now try ./manage.py migrate myapp...
How to get the first word of a sentence in PHP?
...sis for at least 6 years and I didn't ever heard about this function until now
– Epoc
Dec 7 '17 at 14:21
...
Callback to a Fragment from a DialogFragment
...od like callBackMethod(Object data). Which you would calling to pass data.
Now you can implement DialogFragmentCallbackInterface interface in your fragment like MyFragment implements DialogFragmentCallbackInterface
At time of DialogFragment creation set your invoking fragment MyFragment as target f...
Why would an Enum implement an Interface?
...plexOperators implements Operator {
// can't think of an example right now :-/
}
Now to get a list of both the Simple + Complex Operators:
List<Operator> operators = new ArrayList<Operator>();
operators.addAll(Arrays.asList(SimpleOperators.values()));
operators.addAll(Arrays.asLi...