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Why can't variable names start with numbers?
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Because then a string of digits would be a valid identifier as well as a valid number.
int 17 = 497;
int 42 = 6 * 9;
String 1111 = "Totally text";
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Argparse: Way to include default values in '--help'?
... Don't forget to include the variable 'type' in your formatting string-- e.g. '%(default)s' for a string, or '%(default)d' for a digit.
– strongMA
Jan 23 '14 at 22:26
2
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What is the difference between native code, machine code and assembly code?
...ase configuration with JIT optimization enabled:
static void Main(string[] args) {
Console.WriteLine("Hello world");
00000000 55 push ebp ; save stack frame pointer
00000001 8B EC mov ebp,esp ...
How to select a single field for all documents in a MongoDB collection?
... include several fields. In the following operation, find() method returns all documents that match the query. In the result set, only the item and qty fields and, by default, the _id field return in the matching documents.
db.inventory.find( { type: 'food' }, { item: 1, qty: 1 } )
In this example ...
How to create a responsive image that also scales up in Bootstrap 3
... put the .col class on the image will do the trick - however this gives it extra padding along with any other attributes associated with the class such as float left, however these can be cancelled by say for example a no padding class as an addition.
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Prevent body scrolling but allow overlay scrolling
...ts from being scrollable, too. Have not found any solution so far (without extra plugIns)
– Garavani
Sep 4 '14 at 7:12
22
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Java: How to test methods that call System.exit()?
...se of ExpectedSystemRule is nice, of course; the problem is it requires an extra 3rd-party library which provides very little in terms of real-world usefulness, and is JUnit-specific.
– Rogério
Oct 22 '15 at 16:15
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how to show progress bar(circle) in an activity having a listview before loading the listview with d
...ctivity extends Activity {
ListView listView;
LinearLayout layout;
List<String> stringValues;
ArrayAdapter<String> adapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
listView = (...
How does Facebook Sharer select Images and other metadata when sharing my URL?
...the http://www.facebook.com/sharer.php does not use meta tags. It uses the string you pass. See below.
http://www.facebook.com/sharer.php?s=100&p[title]=THIS IS MY TITLE&p[summary]=THIS IS MY SUMMARY&p[url]=http://www.MYURL.com&&p[images][0]=http://www.MYURL.com/img/IMAGEADDRESS...
How to send email attachments?
... smtp = smtplib.SMTP(server)
smtp.sendmail(send_from, send_to, msg.as_string())
smtp.close()
It's much the same as the first example... But it should be easier to drop in.
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