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Android Json and null values
...: http://developer.android.com/reference/org/json/JSONObject.html#isNull%28java.lang.String%29
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Best explanation for languages without null
...now that the value will never be null.
As others have mentioned, in C# or Java for example, null can mean one of two things:
the variable is uninitialized. This should, ideally, never happen. A variable shouldn't exist unless it is initialized.
the variable contains some "optional" data: it needs...
How do I create a constant in Python?
Is there a way to declare a constant in Python? In Java we can create constant values in this manner:
41 Answers
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How do I address unchecked cast warnings?
...y to limit the scope of the @SuppressWarnings annotation. According to its Javadocs, it can go on local variables; this way, it doesn't even affect the entire method.
Example:
@SuppressWarnings("unchecked")
Map<String, String> myMap = (Map<String, String>) deserializeMap();
There is ...
format statement in a string resource file
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I get java.util.IllegalFormatConversionException: %d can't format java.lang.Double arguments when I use $d think $d is an integer
– user1634451
Apr 17 '14 at 5:43
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How do you input commandline argument in IntelliJ IDEA?
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What if I wanna use a redirect symbol? For example, $ javac Filter WhiteList.txt < TotalList.txt, how can I run this in Intellij just like command lines?
– Wulfric Lee
Sep 9 '16 at 1:26
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How to activate “Share” button in android app?
...ITY_NEW_TASK);
startActivity(intent)
}
} catch (e: java.lang.Exception) {
e.printStackTrace()
toast("Error")
}
}
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How to correct indentation in IntelliJ
...o the same level as the code, you can simply do as follows:
(example for JavaScript)
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Android: how to make keyboard enter button say “Search” and handle its click?
...oid:imeOptions="actionSearch"
android:inputType="text" />
In the java add the editor action listener.
editText.setOnEditorActionListener(new TextView.OnEditorActionListener() {
@Override
public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
if (actionId...
Getting a list item by index
I've recently started using c# moving over from Java. I can't seem to find how to get a list item by index. In java to get the first item of the list it would be:
...