大约有 16,000 项符合查询结果（耗时：0.0380秒） [XML]
What is the fastest way to get the value of π?
...(4.0 *. t)
Lastly, how about some pi golf (800 digits)? 160 characters!
int a=10000,b,c=2800,d,e,f[2801],g;main(){for(;b-c;)f[b++]=a/5;for(;d=0,g=c*2;c-=14,printf("%.4d",e+d/a),e=d%a)for(b=c;d+=f[b]*a,f[b]=d%--g,d/=g--,--b;d*=b);}
...
Email Address Validation in Android on EditText [duplicate]
...mail");
}
}
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
// other stuffs
}
public void onTextChanged(CharSequence s, int start, int before, int count) {
// other stuffs
}
});
2- Simplest method using if-else condition. ...
How can you search Google Programmatically Java API [closed]
...va.net.URLConnection to fire and handle HTTP requests.
JSON can in Java be converted to a fullworthy Javabean object using an arbitrary Java JSON API. One of the best is Google Gson.
Now do the math:
public static void main(String[] args) throws Exception {
String google = "http://ajax.google...
Difference between numeric, float and decimal in SQL Server
...d have better speed (up to 20x) and you should also consider when they got converted in .NET
What is the difference between Decimal, Float and Double in C#
Decimal vs Double Speed
SQL Server - .NET Data Type Mappings (From MSDN)
main source : MCTS Self-Paced Training Kit (Exam 70-433): Mi...
git status shows modifications, git checkout — doesn't remove them
...n
I've had these kinds of problems too. It comes down to git automatically converting crlf to lf. This is typically caused by mixed line endings in a single file. The file gets normalized in the index, but when git then denormalizes it again to diff it against the file in the working tree, the resul...
How to customize a Spinner in Android
...ects;
private Context context;
public CustomArrayAdapter(Context context, int resourceId,
List<String> objects) {
super(context, resourceId, objects);
this.objects = objects;
this.context = context;
}
@Override
public View getDropDownView(int position, View convertView,
...
Should struct definitions go in .h or .c file?
...uct s { | | struct s; |
| int internal; | | |
| int other_stuff; | | extern void |
| }; | | api_func(struct s *foo, int x); |
| ...
MySQL foreign key constraints, cascade delete
I want to use foreign keys to keep the integrity and avoid orphans (I already use innoDB).
3 Answers
...
Can an ASP.NET MVC controller return an Image?
...
For those that are coming into this question now, this was the solution that worked best for me.
– Clarence Klopfstein
Dec 25 '09 at 5:09
...
Computed / calculated / virtual / derived columns in PostgreSQL
...he similar "computed columns" of SQL Server.
STORED generated columns are introduced with Postgres 12. Trivial example:
CREATE TABLE tbl (
int1 int
, int2 int
, product bigint GENERATED ALWAYS AS (int1 * int2) STORED
);
db<>fiddle here
VIRTUAL generated columns may come with one o...