Actually here is a similar topic with little practical value.
As far as I understand, primitives perform better and should be used everywhere except for the cases where Object-related features (e.g. ... |
I was browsing some old books and found a copy of "Practical Java" by Peter Hagger. In the performance section, there is a recommendation to set object references to null when ... |
I read this SO post after I wrote out the title but still decided to go through with the question on bug-proof implementations of equals in Java. This is my ... |
I'm working on an application with a 3D viewport which refreshes 30 times a second (or at least tries to render that fast). Unfortunately, the code is complicated enough that ... |
i am developing a framework for creating efficient applications in all sizes. Applications consist of modules (application is a module too) and performance is important for me. I know there ... |
So say for example I'm going through an 'if' block and in this block, I am comparing the value of some number to a constant. Would it be more expensive like ... |
I'm new to Java programming.
I am curious about speed of execution and also speed of creation and distruction of objects.
I've got several methods like the following:
private static void getAbsoluteThrottleB() {
...
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Possible Duplicate:
Does setting Java objects to null do anything anymore?
Will dereferncing the unused object(assigning with null) increase performance in lengthy methods? If it increase, ... |
I'm sure this might have been discussed at length or answered before, however I need a bit more information on the best approach for my situation...
Problem:
We have some large XML ... |
Can I use the same Cipher object across multiple methods until the parameters to cipherObj.getInstance(), cipher.init() DO NOT CHANGE.
For ex, assume multiple parts of the application using decrypt method in ... |
The project that I am currently working on has lot of objects that are serialized in order to get a deep copy of the the existing object. This works fine untill ... |
Let's say I have a List of Employee Objects. The Employee Objects have a getDepartment method which returns a Department Object. I want to iterate through that list to find the ... |
This is actually related to a question I asked earlier, but I was left hanging on this detail. I'm restricted to Java 1.4 and I want to cast an int type ... |
When using an object repeatedly, is it better to clear the data by setting it to null, or instantiate a new object?
Object a = new Object();
...
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Let's say for example I have a class A that creates an instance of a fairly big object B. Is passing B as a parameter to a method in a class ... |
There is a list which is holding 300,000 objects all the time, which won't be cleaned by gc.
If the jvm configuration "Xmx" have a big enough value, will this big ... |
SoapPlugin extends Plugin {
try {
ret = (new LoginUser()).soap(data);
}
}
public class SoapPlugin extends Plugin {
...
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Hm. You can't create a new interface - pedantic speaking. But talking about these things, we need to be pedantic. When you cast an element from a collection, you don't create a new object - or a new instance, but get exactly that object, which was put into the collection (or added or inserted...). That is in first place a question ... |
DrLaszloJamf, thanks for the reminder, a friendly question too, is it the forums rules not to use shortcuts for some words? if so then am really thankful for your reminder and i respect the forum rules. to others, this is internet, so plz consider non-native english members, thanks. Edited by: akkadation on Nov 18, 2008 1:31 AM |
i am not an expert on this (but i might be the only one that comes close at 2am) java passes the reference to the object, not the object itself, so it doesnt matter how big the object is, the same amount of data gets passed every time. its another story if you use RMI, but i dont think you are ... |