Hi guys....... I am new to java...... Need to clear my basics about java.......
Why java is developed?.........What are the advantages of Java over C++?
Can't we write the same java code in C++?
> Hi guys....... I am new to java...... Need to clear
> my basics about java.......
>
> Why java is developed?.........What are the
> advantages of Java over C++?
>
> Can't we write the same java code in C++?
Type those questions into Google. No need to go through all that again just because you haven't yet researched the topic.
~
what did this same thread from 2 weeks ago devolve into?
was that the hits from the 80's thread?
or was it that blackmage thread?
> what did this same thread from 2 weeks ago devolve
> into?
> was that the hits from the 80's thread?
Perhaps. I remember one reply was:
Young man, are you listening to me?
I said, young man, what do you want to be?
But then again, that could have been addressed to blackie.
it was the "engineers vs. programmers" thread.
"Why Learn Java over C++?"
http://forum.java.sun.com/thread.jspa?threadID=5193207&start=0&tstart=0
hey... I have idea @ Java But the following doubt are still there....
1 - Internal part of java is still made of C, C++ . So why to Use Java Which has such a heavy JVM which is affecting performance?
2 - in C++ , when we call free(), It just frees the memory.......While in JaVA , U need to depend upon JVM for deallocating the memory..... U can't free the memory just by calling garbage collector....... U need to first make the variable as NULL.
3 - About platform independency, Your target environment is handeled by JVM.........Which takes a large amount of memory..... So why can't we create an application in C++ for multiplatform user Using cross compiler?.........
4 - Two main issues in Java are memory consumption & Performance.... How to solve that?
30 Helens agree... many scientists with fancy degrees found it
necessary to write Java for some reason.
> 1 - Internal part of java is still made of C, C++ .
Nope. Some implementations of the JVM may use C or C++, but that's certainly not a requirement. All of it's compiled to machine code, anyway, so why not just use ASM and get *really* optimized, eh?
> So why to Use Java Which has such a heavy JVM which
> is affecting performance?
What data are you using that suggests the JVM is "heavy" and "affects performance"?
> 2 - in C++ , when we call free(), It just frees the
> memory.......While in JaVA , U need to depend upon
> JVM for deallocating the memory..... U can't free the
> memory just by calling garbage collector....... U
> need to first make the variable as NULL.
Frighteningly wrong.
> 3 - About platform independency, Your target
> environment is handeled by JVM.........Which takes a
> large amount of memory..... So why can't we create an
> application in C++ for multiplatform user Using cross
> compiler?.........
You can, but you lose the benefits of the HotSpot JVM.
> 4 - Two main issues in Java are memory consumption &
> Performance.... How to solve that?
What issue?
~
> 1 - Internal part of java is still made of C, C++ .
> So why to Use Java Which has such a heavy JVM which
> is affecting performance?
>
why use C++ when you can just as easily poke instructions directly into the CPU?
> 2 - in C++ , when we call free(), It just frees the
> memory.......While in JaVA , U need to depend upon
> JVM for deallocating the memory..... U can't free the
> memory just by calling garbage collector....... U
> need to first make the variable as NULL.
>
Who is this weird person called "U" who does all that?
> 3 - About platform independency, Your target
> environment is handeled by JVM.........Which takes a
> large amount of memory..... So why can't we create an
> application in C++ for multiplatform user Using cross
> compiler?.........
>
They did, it's called Java. Java does exactly that.
> 4 - Two main issues in Java are memory consumption &
> Performance.... How to solve that?
they're not issues...
> ... at least once a week.
I'm surprised we haven't seen a "Why doesn't x = x++ work?" thread in a while.
> > ... at least once a week.
>
> I'm surprised we haven't seen a "Why doesn't x = x++
> work?" thread in a while.
summer vacation, so no fresh group of kids starting their courses for a few weeks.
Instead we get the hopeless cases who failed their exams and now are desperate to cheat their way past the retakes.
> Then how do u free the menory in java & C++
Pull the plug on the machine
> > Then how do u free the menory in java & C++
> Pull the plug on the machine
george, im nominating you for best response of the week.
this thread was a few days old though?
"29 Helens agree, punctuality is important..."
> > > Then how do u free the menory in java & C++
> > Pull the plug on the machine
>
> george, im nominating you for best response of the
> week.
:-) cool
That's the only way I can think of to free memory in both Java and C++
