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@Nullable annotation usage
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It makes it clear that the method accepts null values, and that if you override the method, you should also accept null values.
It also serves as a hint for code analyzers like FindBugs. For example, if such a method dereferences its argument without checking for null first, Fin...
Matplotlib transparent line plots
I am plotting two similar trajectories in matplotlib and I'd like to plot each of the lines with partial transparency so that the red (plotted second) doesn't obscure the blue.
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Preview layout with merge root tag in Intellij IDEA/Android Studio
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There is a new parentTag tools attribute (added in Android Studio 2.2) that you can use to specify the layout type for a merge tag, which will make the layout render correctly in the layout editor preview.
So using your example:
<merge xmlns:android="http://schemas.andr...
How to go back to previous page if back button is pressed in WebView?
...bView:
private WebView mWebView;
Initialize it in the onCreate() method and you should be good to go.
mWebView = (WebView) findViewById(R.id.webView);
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How to zero pad a sequence of integers in bash so that all have the same width?
...speaking, seq supports a subset of the format chars. that printf supports (and that subsets includes g, but not d). The behavior of characters d and g differs subtly in that d interprets 0-prefixed numbers strings as octal numbers and converts them to decimal, whereas g treats them as decimals. (@Ed...
How do I turn a String into a InputStreamReader in java?
.... That wrong version number is especially weird as Java 1.4 introduced NIO and it makes little sense to introduce an API and its conceptional successor within the same version.
– Holger
Mar 31 '15 at 11:00
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Does Java have a HashMap with reverse lookup?
...okup in both directions. Is there a name for this type of data structure, and is anything like this included in Java's standard libraries? (or maybe Apache Commons?)
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how to pass an integer as ConverterParameter?
...ton>
The trick is to include the namespace for the basic system types and then to write at least the ConverterParameter binding in element form.
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How can I get maven-release-plugin to skip my tests?
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It works for me, thanks and +1 but ... Wny is this necessary?
– javamonkey79
Oct 10 '12 at 17:13
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How to tell which colorscheme a Vim session currently uses
...e's no guaranteed way (as a colour scheme is essentially a load of vim commands that are sourced). However, by convention there should be a variable g:colors_name that is set to the name of the colour scheme.
Therefore, try this:
echo g:colors_name
If you get E121, it's either a poorly made col...