Closed. This question needs to be more focused. It is not currently accepting answers.
Want to improve this question? Update the question so it focuses on one problem only by editing this post.
Closed 3 years ago.
Improve this question
From what I know about stacks, it seems like this method goes against the whole point of a stack- if you need to know where in your stack a specific element is then why are you using a stack at all?
Edit: I'm not trying to waste anyone's time or ask dumb questions, I'm a student who's honestly just trying to figure out the rationale behind this function so that I can become a better programmer
I would put it like that:
Java has its inconsistencies and this is one of them.
If you take a deeper look you will find that Stack is a subclass of Vector and inherits its mehtods which also seem to make not that much of a sense.
Programming languages are living and growing things made by people and I think you can always find things that don't make sense or things that you wish would have been made in a better way (whatever 'better' means).
In some you will find more in some you will find less flaws.
Related
Closed. This question needs to be more focused. It is not currently accepting answers.
Want to improve this question? Update the question so it focuses on one problem only by editing this post.
Closed 5 years ago.
Improve this question
Why getText() in JPasswordField was deprecated?
According to this answer for the above question, what I understood was that creating a String object containing the password is a security threat because it may remain in the memory for a while and it is immutable.
So I was wondering,
How easy is it to retrieve something which has been hanging around
in the memory, without a reference or left out for garbage collection?
And how do you do it?
EDIT
As the question has been closed, be kind to share your knowledge by adding a comment, and consider reopening the question if you believe it may get interesting answers in the future. :)
https://en.wikipedia.org/wiki/Heartbleed
This is a good real-world example of things hanging in memory being used for exploitation. There's different ways to do it, so it's good to just make sure things that are valuable aren't being left hanging. Usually these attacks are just guess-and-check. You just keep sending information and piecing together the bits of extra memory you get in return.
Closed. This question needs to be more focused. It is not currently accepting answers.
Want to improve this question? Update the question so it focuses on one problem only by editing this post.
Closed 6 years ago.
Improve this question
So, I just finished my first program, but I haven't use any methods in it, since I'm just beginning to learn how to use them. Here's the original code : http://codepad.org/JiBfJI8Q I started to fractionate it but realised that it would be a method inside another all the way down. Is that actually the way to do it, or did I get the idea wrong?
without having looked at your code:
The general idea of methods is to separate small
portions of code which might be used at multiple other places in your code.
so yes, calling methods from within other methods is a good thing to do.
ideally your so called "composed methods" read out like a little story:
public void transaction(){
openDatabaseConnection();
addRecordsToDatabase();
closeDataseConnection();
}
Closed. This question needs details or clarity. It is not currently accepting answers.
Want to improve this question? Add details and clarify the problem by editing this post.
Closed 8 years ago.
Improve this question
Please explain me the differences over time and space complexities in java for user defined and predefined functions in java. examples like, linked list, list, stack class. please explain this with valid example.
thank you.
There is nothing special in predefined function over user defined. The only thing is predefined has been written by somebody else for you. It depends on algorithm.
Crap code/implementation runs in a crap way. Doesn't matter if its user created or system/API provided. example at a high level is EJBs vs Spring.
Good written code runs pretty and sleek. Again doesn't matter who the hell wrote it.
Closed. This question is opinion-based. It is not currently accepting answers.
Want to improve this question? Update the question so it can be answered with facts and citations by editing this post.
Closed 9 years ago.
Improve this question
(This might be the wrong place to ask the question, please let me know).
Should I name my method isStaticallyImported or isStaticlyImported?
(They'd be pronounced pretty much the same way, I believe)
Of course they should be in good english. Even if the human brain will likely have no problems reading garbled up words, compilers do not enjoy the same luxury.
How many times have you miswritten a variable name, then later on used the correct spelling, only to find out that the program crashed at run/compile time?
This problem is only amplified when working on code that was not written by you, because we think of things as, well, things, and having to specially remember that the thing had to be spelled in a special way is just an unneeded break to your workflow.
Yes, your variables should be clear to the developer. You can name it whatever you want and it will work because the compiler doesn't care. When you name the variable in a human readable manner then developers after you will be able to read and understand your code much easier. You should name it "isStaticallyImported".
They should be in the most easily understandable language for those using and maintaining it in my opinion.
I'm also pretty sure the compiler doesn't care about the quality of spelling.
Closed. This question is off-topic. It is not currently accepting answers.
Want to improve this question? Update the question so it's on-topic for Stack Overflow.
Closed 10 years ago.
Improve this question
I'm TAing for an introductory course in Java for freshmen. So, far we've learnt most of Java except the OOPS part. Like we can do methods, loops, control stuctures, arrays, strings, recursion etc..
Since this is their first programming course, they are not aware of fancy datastructures yet.
I have dont most of the regular programs like factorial, fibonacci, primes etc..
I'm looking for some interesting problems in the space without using complex datastructures. Any ideas would be super helpful.
thanks, Vinbot
Project Euler has some problems that you can solve without additional data structures, and all the problems have the nice property of being mathematically interesting. Not all the problems will work for your course, but I bet you can find enough that do, especially among the first few.