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Check if application is on its first run [duplicate]
...sFile";
final String PREF_VERSION_CODE_KEY = "version_code";
final int DOESNT_EXIST = -1;
// Get current version code
int currentVersionCode = BuildConfig.VERSION_CODE;
// Get saved version code
SharedPreferences prefs = getSharedPreferences(PREFS_NAME, MODE_PRIVATE);
i...
How to Find And Replace Text In A File With C#
... I know; this example doesn't write while it's reading, that was my point!
– Flynn1179
May 21 '18 at 8:12
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Alter MySQL table to add comments on columns
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try:
ALTER TABLE `user` CHANGE `id` `id` INT( 11 ) COMMENT 'id of user'
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Code First: Independent associations vs. Foreign key associations?
...you will definitely use Entity reference:
public class Order
{
public int ID { get; set; }
public Customer Customer { get; set; } // <-- Customer object
...
}
Once you generate an entity model from a database with FKs it will always generate entity references. If you don't want to ...
How do I abort/cancel TPL Tasks?
...6parmak I think the only thing you can do then is use Task.Wait(TimeSpan / int) to give it a (time-based) deadline from the outside.
– Mark
Oct 20 '14 at 9:38
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Round a double to 2 decimal places [duplicate]
...nal version; watch out with this
public static double round(double value, int places) {
if (places < 0) throw new IllegalArgumentException();
long factor = (long) Math.pow(10, places);
value = value * factor;
long tmp = Math.round(value);
return (double) tmp / factor;
}
Th...
How do I enable/disable log levels in Android?
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A common way is to make an int named loglevel, and define its debug level based on loglevel.
public static int LOGLEVEL = 2;
public static boolean ERROR = LOGLEVEL > 0;
public static boolean WARN = LOGLEVEL > 1;
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public static boolean VERBOSE...
Check if a Class Object is subclass of another Class Object in Java
...e replaced with subclass
From the JavaDoc:
Determines if the class or interface represented by this Class object is either the same as, or is a superclass or superinterface of, the class or interface represented by the specified Class parameter. It returns true if so; otherwise it returns false...
C# Stream流使用总结 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...array, 0, array.Length);
bufferedOutput.Write(array, 0, array.Length);
int bytesRead = 0;
while ((bytesRead = bufferedInput.Read(array, 0, 4096)) > 0)//读取到了数据
{
bufferedOutput.Write(array, 0, bytesRead);
Console.WriteLine(bytesRead);
}
bufferedInput.Close();//关...
How to do a FULL OUTER JOIN in MySQL?
... syntax. According to MySql's outer join simplification, the right join is converted to the equivalent left join by switching the t1 and t2 in the FROM and ON clause in the query. Thus, the MySql Query Optimizer translates the original query into the following -
SELECT * FROM t1
LEFT JOIN t2 ON t1...