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Including all the jars in a directory within the Java classpath
...r example, foo/* looks
for JAR files only in foo, not in foo/bar, foo/baz, etc.
The order in which the JAR files in a directory are enumerated in the
expanded class path is not specified and may vary from platform to
platform and even from moment to moment on the same machine. A
well-constructed app...
How to see log files in MySQL?
...yslog).
To Enable them just follow below steps:
step1: Go to this file (/etc/mysql/conf.d/mysqld_safe_syslog.cnf) and remove or comment those line.
step2: Go to mysql conf file (/etc/mysql/my.cnf) and add following lines
To enable error log add following
[mysqld_safe]
log_error=/var/log/mysql/...
Why would you ever implement finalize()?
...it as a backstop for an object holding an external resource (socket, file, etc). Implement a close() method and document that it needs to be called.
Implement finalize() to do the close() processing if you detect it hasn't been done. Maybe with something dumped to stderr to point out that you're c...
How to find all the subclasses of a class given its name?
I need a working approach of getting all classes that are inherited from a base class in Python.
10 Answers
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Disable ONLY_FULL_GROUP_BY
...ution): you have to put the description of sql_mode inside a my.cnf file (/etc/my.cnf for instance) and restart the server. For instance, insert (below the [mysqld] section) sql_mode = "STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITU...
How to give ASP.NET access to a private key in a certificate in the certificate store?
...he menu list for Personal... So if you've put your cert in Trusted People, etc. you're out of luck.
We found a way around this which worked for us. Drag and drop the cert to Personal, do the Manage Private Keys thing to grant permissions. Remember to set to use object-type built-ins and use the loc...
What is difference between monolithic and micro kernel?
...t and some popular Linux distros have a Hurd port (Debian/Hurd, Arch Hurd, etc).
– beatgammit
Feb 2 '13 at 3:18
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What is the difference between JVM, JDK, JRE & OpenJDK?
... compiler (javac.exe), Java application launcher (java.exe), Appletviewer, etc…
Compiler converts java code into byte code. Java application launcher opens a JRE, loads the class, and invokes its main method.
You need JDK, if at all you want to write your own programs, and to compile them. For r...
When should null values of Boolean be used?
...ean is useful, for example
to store booleans in a collection (List, Map, etc.)
to represent a nullable boolean (coming from a nullable boolean column in a database, for example). The null value might mean "we don't know if it's true or false" in this context.
each time a method needs an Object as ...
What is the best Java email address validation method? [closed]
...of the address (left-hand side, right-hand side, personal names, comments, etc), to parse/validate mailbox-list headers, to parse/validate the return-path (which is unique among the headers), and so forth.
The code as written has a javamail dependency, but it's easy to remove if you don't want the ...