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How do you Programmatically Download a Webpage in Java
...tr);
HttpURLConnection conn = (HttpURLConnection) url.openConnection(); // Cast shouldn't fail
HttpURLConnection.setFollowRedirects(true);
// allow both GZip and Deflate (ZLib) encodings
conn.setRequestProperty("Accept-Encoding", "gzip, deflate");
String encoding = conn.getContentEncoding();
InputSt...
Difference between decimal, float and double in .NET?
...a double/float.
Decimals and Floats/Doubles cannot be compared without a cast whereas Floats and Doubles can. Decimals also allow the encoding or trailing zeros.
float flt = 1F/3;
double dbl = 1D/3;
decimal dcm = 1M/3;
Console.WriteLine("float: {0} double: {1} decimal: {2}", flt, dbl, dcm);
Res...
MD5 algorithm in Objective-C
...s answer is a lot cleaner to read than the others; one thing it needs is a cast to (int) before strlen e.g. (int)strlen...
– brandonscript
Nov 15 '14 at 7:02
...
When should a class be Comparable and/or Comparator?
...he compile-time error) ; your implementation has to cope with objects, and cast as needed but in a robust way.
Comparable<Itself> is very strict on the contrary.
Funny, when you subclass Itself to Subclass, Subclass must also be Comparable and be robust about it (or it would break Liskov ...
Search for selection in vim
...
Check this Vim tip: Search for visually selected text
Or you can simply yank the selected text with y and go to search mode /, then you can paste the last yanked text with Ctrl+R 0
share
...
Why is char[] preferred over String for passwords?
...
Why would someone assume the char array was going to be cast as an Object? I'm not sure I get why every likes this answer. Suppose you did this: System.out.println("Password".toCharArray());
– GC_
Aug 22 '16 at 13:23
...
Html.DropdownListFor selected value not being set
How can I set the selected value of a Html.DropDownListFor? I've been having a look online and have seen that it can be achieved by using the fourth parameter so like the below:
...
How to refresh Android listview?
...stView#getAdapter()}
// method instead. However you would have to cast that adapter
// to your own instance every time
}
/**
* helper to show what happens when all data is new
*/
private void reloadAllData(){
// get new modified random data
Li...
MySQL select with CONCAT condition
...available within the query itself.
You can either repeat the expression:
SELECT neededfield, CONCAT(firstname, ' ', lastname) as firstlast
FROM users
WHERE CONCAT(firstname, ' ', lastname) = "Bob Michael Jones"
or wrap the query
SELECT * FROM (
SELECT neededfield, CONCAT(firstname, ' ', last...
Get top n records for each group of grouped results
...ould need to specify the group number and add queries for each group:
(
select *
from mytable
where `group` = 1
order by age desc
LIMIT 2
)
UNION ALL
(
select *
from mytable
where `group` = 2
order by age desc
LIMIT 2
)
There are a variety of ways to do this, see this articl...