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How is the java memory pool divided?
...ap memory
The heap memory is the runtime data area from which the Java VM allocates memory for all class instances and arrays. The heap may be of a fixed or variable size. The garbage collector is an automatic memory management system that reclaims heap memory for objects.
Eden Space: The pool fr...
Differences between Proxy and Decorator Pattern
...more clear.
Proxy first:
public interface Authorization {
String getToken();
}
And :
// goes to the DB and gets a token for example
public class DBAuthorization implements Authorization {
@Override
public String getToken() {
return "DB-Token";
}
}
And there is a call...
Task vs Thread differences [duplicate]
...u should support
cancel event in your "business code" periodically testing token.IsCancellationRequested flag (also avoid long or timeoutless connections e.g. to db, otherwise you will never get a chance to test this flag). By the similar reason Thread.Sleep(delay) call should be replaced with Task...
Generating Random Passwords
...will hold password characters.
char[] password = null;
// Allocate appropriate memory for the pas
PostgreSQL, checking date relative to “today”
...days, cast now()::date as Alex Howansky suggested.
– tokenizer_fsj
Jul 4 '19 at 21:40
1
@tokenize...
How to configure Git post commit hook
...bin/curl --user USERNAME:PASS -s \
http://jenkinsci/job/PROJECTNAME/build?token=1qaz2wsx
Configure your Jenkins job to be able to “Trigger builds remotely” and use an authentication token (1qaz2wsx in this example).
However, this is a project-specific script, and the author mentions a wa...
Storing SHA1 hash values in MySQL
...r performance reasons.
In my case the sha1 column is an email confirmation token, so on the landing page the query enters only with the token.
In this case CHAR(40) with INDEX, in my opinion, is the best choice :)
If you want to adopt this method, remember to leave $raw_output = false.
...
Does free(ptr) where ptr is NULL corrupt memory?
...cription
The free function causes the space pointed to by ptr to be deallocated, that is, made
available for further allocation. If ptr is a null pointer, no action occurs.
See ISO-IEC 9899.
That being said, when looking at different codebases in the wild, you'll notice people sometimes d...
In what cases do I use malloc and/or new?
I see in C++ there are multiple ways to allocate and free data and I understand that when you call malloc you should call free and when you use the new operator you should pair with delete and it is a mistake to mix the two (e.g. Calling free() on something that was created with the new ...
Instantiating a generic class in Java [duplicate]
...<Bar>) then reflectively making a Bar instance with Class<Bar> token = Bar.class; and Bar newBar = token.newInstance(); appears so much less verbose to me.
– scottb
Aug 15 '13 at 20:25
...