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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 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 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 ...
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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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:
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How to get TimeZone from android mobile?
...ere the program is running.
Ref: http://developer.android.com/reference/java/util/TimeZone.html
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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...
Converting Integer to String with comma for thousands
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I had to add import java.text.NumberFormat;.
– Mike S
May 11 '15 at 21:09
6
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How do I get a file's directory using the File object?
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File.getParent() from Java Documentation
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