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How do I create a file and write to it in Java?
...ths.get("the-file-name.txt");
Files.write(file, lines, StandardCharsets.UTF_8);
//Files.write(file, lines, StandardCharsets.UTF_8, StandardOpenOption.APPEND);
Creating a binary file:
byte data[] = ...
Path file = Paths.get("the-file-name");
Files.write(file, data);
//Files.write(file, data, Stand...
Iterating over all the keys of a map
...
how do I iterate over all the keys?
Use the accepted answer:
for k, _ := range m { ... }
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What does `dword ptr` mean?
...ral purpose computers usually use 32 or 64 bits. en.wikipedia.org/wiki/Word_(computer_architecture)
– uzay95
Dec 25 '16 at 21:35
6
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count(*) vs count(column-name) - which is more correct? [duplicate]
... difference is:
COUNT(*) will count the number of records.
COUNT(column_name) will count the number of records where column_name is not null.
Therefore COUNT(*) is what you should use. If you're using MyISAM and there is no WHERE clause, then the optimiser doesn't even have to look at the tabl...
How to check for file existence [duplicate]
Is there a Ruby class/method where I could pass "a full path", home/me/a_file.txt , to identify whether it is a valid file path?
...
I want to use CASE statement to update some records in sql server 2005
...N 44
ELSE 0
END AS [CycleId]
INTO
##ACE1_PQPANominals_1
FROM
[dbo].[ProductionQueueProcessAutoclaveNominals]
WHERE
[QueueId] = 3
ORDER BY
[BaseDimensionId], [ElastomerTypeId], [Id];
---- (403 row(s) affected)
UPDATE [dbo].[ProductionQueueProcessAutoc...
解决：ORA-00054:资源正忙,要求指定NOWAIT - 数据库(内核) - 清泛网 - 专注...
...出所有被锁的对象，定位出哪个回话占用
select l.session_id,o.owner,o.object_name from v$locked_object l,dba_objects o where l.object_id=o.object_id
结果：
session_id owner object_name
158 SA TEST_1
...
对比想要创建的索引，定位哪些会话需要被删除
2：...
如何查看Android应用.apk是32位还是64位？ - App应用开发 - 清泛IT社区，为创新赋能！
...APK文件的信息，包括其支持的架构。
aapt dump badging your_app.apk | grep native-code
这条命令会输出APK支持的架构信息。aapt工具包含在Android SDK的Build-tools中。
请注意，如果一个APK支持多个架构，那么它会被认为是兼容的，因为And...
android get real path by Uri.getPath()
...w we have three methods that deals with different SDKs.
getRealPathFromURI_API19(): returns real path for API 19 (or above but not tested)
getRealPathFromURI_API11to18(): returns real path for API 11 to API 18
getRealPathFromURI_below11(): returns real path for API below 11
public class RealPathUt...
Entity Framework with NOLOCK
...LockInterceptor : DbCommandInterceptor
{
private static readonly Regex _tableAliasRegex =
new Regex(@"(?<tableAlias>AS \[Extent\d+\](?! WITH \(NOLOCK\)))",
RegexOptions.Multiline | RegexOptions.IgnoreCase);
[ThreadStatic]
public static bool SuppressNoLock;
...