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How to overload the operator++ in two different ways for postfix a++ and prefix ++a?
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answered Oct 2 '10 at 15:32
Martin YorkMartin York
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Hidden Features of Java
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JDK 1.6_07+ contains an app called VisualVM (bin/jvisualvm.exe) that is a nice GUI on top of many of the tools. It seems more comprehensive than JConsole.
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How can I make a div stick to the top of the screen once it's been scrolled to?
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edited Jan 26 '17 at 10:32
answered Jan 23 '17 at 13:46
C...
Resolving javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path
...ertificate for App2 to the truststore file of the used JVM located at %JAVA_HOME%\lib\security\cacerts.
First you can check if your certificate is already in the truststore by running the following command:
keytool -list -keystore "%JAVA_HOME%/jre/lib/security/cacerts" (you don't need to provide a ...
Start thread with member function
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answered Nov 18 '17 at 8:32
Andrey StarodubtsevAndrey Starodubtsev
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How to return an array from JNI to Java?
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}
return(ret);
}
from link:
http://www.coderanch.com/t/326467/java/java/Returning-String-array-program-Java
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What are the basic rules and idioms for operator overloading?
...ey.
The canonical form of providing these is this:
class X {
value_type& operator[](index_type idx);
const value_type& operator[](index_type idx) const;
// ...
};
Unless you do not want users of your class to be able to change data elements returned by operator[] (in which cas...
What is the fastest way to check if a class has a function defined?
...tr() to get the attribute, and callable() to verify it is a method:
invert_op = getattr(self, "invert_op", None)
if callable(invert_op):
invert_op(self.path.parent_op)
Note that getattr() normally throws exception when the attribute doesn't exist. However, if you specify a default value (None...
Can table columns with a Foreign Key be NULL?
...NGINE=INNODB;
CREATE TABLE child (id INT NULL,
parent_id INT NULL,
FOREIGN KEY (parent_id) REFERENCES parent(id)
) ENGINE=INNODB;
INSERT INTO child (id, parent_id) VALUES (1, NULL);
-- Query OK, 1 row affected (0.01 sec)
INSERT INTO child (id, parent_id)...
Java Generics Wildcarding With Multiple Classes
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MarkymarkMarkymark
1,1091313 silver badges2323 bronze badges
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