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error: ‘NULL’ was not declared in this scope
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God, I am so spoiled with Java (null being a keyword) that I never thought that NULL would not be a keyword in c++. Thanks :)
– Stefan Hendriks
Oct 4 '11 at 19:45
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What is the purpose of the word 'self'?
...es -- special syntax like Ruby has, or requiring declarations like C++ and Java do, or perhaps something yet more different -- but it didn't. Python's all for making things explicit, making it obvious what's what, and although it doesn't do it entirely everywhere, it does do it for instance attribu...
Accessing Object Memory Address
...'s true of Python in general. Jython doesn't deal in pointers, it deals in Java references (which the JVM of course probably represents as pointers, but you can't see those—and wouldn't want to, because the GC is allowed to move them around). PyPy lets different types have different kinds of id, b...
How can I increment a char?
I'm new to Python, coming from Java and C. How can I increment a char? In Java or C, chars and ints are practically interchangeable, and in certain loops, it's very useful to me to be able to do increment chars, and index arrays by chars.
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What are the benefits of dependency injection containers?
...s well as support for object interfaces and object reflection (for example Java and C#). While you can build programs using DI patterns in C++ systems its lack of reflection support within the language proper prevents it from supporting application servers and other DI platforms and hence limits th...
How to best position Swing GUIs?
...". I keep waiting for them to disappear and the real GUI to appear!
Since Java 1.5 we've had access to Window.setLocationByPlatform(boolean). which..
Sets whether this Window should appear at the default location for the native windowing system or at the current location (returned by getLocatio...
Freeing up a TCP/IP port?
...etails. Go to last column.
It will be in this format . For example :- PID/java
then execute :
kill -9 PID. Worked on Centos5
For MAC:
lsof -n -i :'port-number' | grep LISTEN
Sample Response :
java 4744 (PID) test 364u IP0 asdasdasda 0t0 TCP *:port-number (LISTEN)
and then execut...
What does Provider in JAX-RS mean?
...control the mapping of data representations (like XML, JSON, CSV) to their Java object equivalents.
Context Providers
These providers control the context that resources can access via @Context annotations.
Exception Providers
These providers control the mapping of Java exceptions to a JAX-RS Res...
what is the use of xsi:schemaLocation?
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The Java XML parser that spring uses will read the schemaLocation values and try to load them from the internet, in order to validate the XML file. Spring, in turn, intercepts those load requests and serves up versions from insid...
How to delete all records from table in sqlite with Android?
... easiest way. developer.android.com/reference/android/database/sqlite/…, java.lang.String, java.lang.String[])
– Jayakrishnan
Dec 16 '16 at 14:43
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