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Optimising Android application before release [closed]
...extView performs allocations internally whenever you call setText() with a CharSequence. But it doesn't allocate anything with the setText(char[] text, int start, int len) variant. This isn't documented, and no one answered when I asked about it.
There are many ones like this. And this is one of t...
Default text which won't be shown in drop-down list
I have a select which initially shows Select language until the user selects a language. When the user opens the select, I don't want it to show a Select language option, because it's not an actual option.
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MySQL - Using COUNT(*) in the WHERE clause
...
try this;
select gid
from `gd`
group by gid
having count(*) > 10
order by lastupdated desc
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Preserve Line Breaks From TextArea When Writing To MySQL
...UOTES, 'UTF-8'));
In query enter $textToStore....
step 2:
write code for select query...and direct echo values....
It works
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How to remove all MySQL tables from the command-line without DROP database permissions? [duplicate]
...tatements to execute it:
SET FOREIGN_KEY_CHECKS = 0;
SET @tables = NULL;
SELECT GROUP_CONCAT('`', table_schema, '`.`', table_name, '`') INTO @tables
FROM information_schema.tables
WHERE table_schema = 'database_name'; -- specify DB name here.
SET @tables = CONCAT('DROP TABLE ', @tables);
PRE...
How to get all Errors from ASP.Net MVC modelState?
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Using LINQ:
IEnumerable<ModelError> allErrors = ModelState.Values.SelectMany(v => v.Errors);
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RegEx to parse or validate Base64 data
...ust at line breaks? (I have seen ones where there is just a couple random chars in the middle of the line. Can't toss the rest of the line just because of that, IMHO)...
– LarryF
Jan 24 '09 at 2:05
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使用 C++ 处理 JSON 数据交换格式 - C/C++ - 清泛网 - 专注C/C++及内核技术
...单的例子。
Json::Reader reader;
Json::Value json_object;
const char* json_document = "{/"age/" : 26,/"name/" : /"huchao/"}";
if (!reader.parse(json_document, json_object))
return 0;
std::cout << json_object["name"] << std::endl;
std::cout << json_object["age"] << std::endl;
输...
StringUtils.isBlank() vs String.isEmpty()
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StringUtils.isBlank() checks that each character of the string is a whitespace character (or that the string is empty or that it's null). This is totally different than just checking if the string is empty.
From the linked documentation:
Checks if a String is whi...
How does the Comma Operator work
...’t work since then the compiler just sees the comma operator between two char[], which cannot be overloaded. The code intentionally first calls the operator= and then subsequently operator, for each remaining element.
– Konrad Rudolph
Oct 9 '11 at 11:04
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