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Design by contract using assertions or exceptions? [closed]
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Personally I prefer asserts for design by contract approaches. Exceptions are defensive and are doing the argument checking inside the function. Also, dbc preconditions don't say "I won't work if you use values out of the working r...
How to find Unused Amazon EC2 Security groups
...AWS CLI tool, I found an easy way to get what I need:
First, get a list of all security groups
aws ec2 describe-security-groups --query 'SecurityGroups[*].GroupId' --output text | tr '\t' '\n'
Then get all security groups tied to an instance, then piped to sort then uniq:
aws ec2 describe-instance...
How can I show ellipses on my TextView if it is greater than the 1 line?
...This is a common problem. Try using the following:
android:scrollHorizontally="true"
android:ellipsize="end"
android:maxLines="1"
.............. the scrollHorizontally is the "special sauce" that makes it work.
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How to get all options of a select using jQuery?
How can I get all the options of a select through jQuery by passing on its ID?
17 Answers
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In Java, what is the best way to determine the size of an object?
...ect. Is there an easy way to find out the size of that object programmatically? Is there a reference that defines how large primitive types and object references are for a VM ?
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CharSequence VS String in Java?
... just use Strings and not worry. Android is merely trying to be helpful by allowing you to also specify other CharSequence objects, like StringBuffers.
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File changed listener in Java
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This is no longer true in Java 7: there's now an API for this that can hook into the OS's notification services: blogs.oracle.com/thejavatutorials/entry/…
– Arnout Engelen
Sep 29 '11 at 10:00
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How to force an entire layout View refresh?
...Invalidate the whole view. If the view is visible, onDraw(Canvas) will be called at some point in the future. This must be called from a UI thread. To call from a non-UI thread, call postInvalidate().
ViewGroup vg = findViewById (R.id.mainLayout);
vg.invalidate();
Now, when the Activity resume...
Spring Boot - inject map from application.yml
...esting part from my application.yml:
oauth:
providers:
google:
api: org.scribe.builder.api.Google2Api
key: api_key
secret: api_secret
callback: http://callback.your.host/oauth/google
providers map contains only one map entry, my goal is to provide dynamic configuration f...
Java: function for arrays like PHP's join()?
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This is clearly the best answer for all Android versions, as Java 8 is only coming out on Android in a bit. This solution uses the built in Android libs, rather than these silly "include a huge lib to perform one action" solutions.
– LukeS...