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What is the difference between == and equals() in Java?
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(Thread necromancy, I know...) For Strings, == is reference equals as well, yes, but it usually works (as in two Strings with the same content will usually be == to each other), because of how Java handles Strings. It won't alw...
Can I use my existing git repo with openshift?
Is it necessary to have git repo on openshift only? I already have bitbucket / github git repo and would prefer to push there only. Can I simply hook into it so that openshift gets intimation ?
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How to do a JUnit assert on a message in a logger
...mport ch.qos.logback.classic.spi.ILoggingEvent;
import ch.qos.logback.core.read.ListAppender;
public class FooTest {
@Test
void doThat() throws Exception {
// get Logback Logger
Logger fooLogger = (Logger) LoggerFactory.getLogger(Foo.class);
// create and start a ...
Can I do a synchronous request with volley?
Imagine I'm in a Service that already has a background thread. Can I do a request using volley in that same thread, so that callbacks happen synchronously?
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Representing graphs (data structure) in Python
...ass__.__name__, dict(self._graph))
I'll leave it as an "exercise for the reader" to create a find_shortest_path and other methods.
Let's see this in action though...
>>> connections = [('A', 'B'), ('B', 'C'), ('B', 'D'),
('C', 'D'), ('E', 'F'), ('F', 'C')]
>>>...
What is the difference between AF_INET and PF_INET in socket programming?
..._INET refers to anything in the protocol, usually sockets/ports.
Consider reading the man pages for socket(2) and bind(2). For the sin_addr field, just do something like the following to set it:
struct sockaddr_in addr;
inet_pton(AF_INET, "127.0.0.1", &addr.sin_addr);
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When to use setAttribute vs .attribute= in JavaScript?
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Thanks for such an detailed answer, I read a lot about DOM and inheritance like HTMLElement inherit from Element and so on, your answer makes perfect sense.
– Suraj Jain
Apr 4 '18 at 8:51
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Why do we need virtual functions in C++?
...amples. This is however, simplistic, and the questioner should really just read the page parashift.com/c++-faq-lite/virtual-functions.html. Other folks have already pointed to this resource in SO articles linked from this thread, but I believe this is worth re-mentioning.
– Son...
Best way to specify whitespace in a String.Split operation
...f they are passed to the Char.IsWhiteSpace method.
Always, always, always read the documentation!
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Where does Java's String constant pool live, the heap or the stack?
...n Java is divided into two portions
1. Stack: One stack is created per thread and it stores stack frames which again stores local variables and if a variable is a reference type then that variable refers to a memory location in heap for the actual object.
2. Heap: All kinds of objects will be cre...