Java Code large number multiplication algorithm with a divide and conquer algorithm

[ivory dove]

Hi i need help for my college with a java code
Pseudo-code of a large number multiplication algorithm with a divide and conquer algorithm,if u know about these picture or about the algorithm please teach me.im really thankful

[tardy nimbus]

<@&987246399047479336> please have a look, thanks.

[tardy nimbus]

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[amber sonnet]

u sorta forgot to ask an actual question

as in, ur asking to ask

[tardy nimbus]

Please don't ask to ask, nor only say hello, just ask your actual question right away, thanks

If you want to read about the details of why this is better, check out:
https://dontasktoask.com/

Zabuzard • used /tag id: ask · Mar 20, 2023, 5:48 PM

Don't ask to ask, just ask

Don't ask to ask, just ask

[ivory dove]

im really sorry for many times my english bad and im new for this discord

[amber sonnet]

no worries

just tell us whats unclear to u, or what question u have, and then someone will try to answer 🙂

[ivory dove]

yeah thank u very much

I have a question about java coding about Pseudo-code of large number multiplication algorithm with divide and conquer algorithm and I have a picture if someone can help me and teach me about this coding, I'm very grateful because I don't really understand java coding yet

and this picture i told

[amber sonnet]

so whats ur question? is something in the picture unclear? what exactly?

what dont u understand?

[ivory dove]

yeah idk how to start

[amber sonnet]

well, code it step by step

[ivory dove]

cause i really confuse about it

[amber sonnet]

about what

[ivory dove]

I have this Java coding and I don't know what steps I should do again and are there any errors regarding my coding. Previously, thank you very much for helping me and sorry if I wasn't clear enough to explain it.

[tardy nimbus]

I uploaded your attachments as gist. That way, they are easier to read for everyone, especially mobile users 👍

[amber sonnet]

okay. first of all, ur supposed to create one method. not two

lets look at the picture

ur supposed to create one method, called Kali2

it takes 3 parameters

long x, long y, int n

and it returns long

so write that now

u can keep its content empty for a moment

just the method itself without body. and then share it

[ivory dove]

wait i'll try

[ivory dove]

may I ask again, is the method void or long?

[amber sonnet]

https://i.imgur.com/mXg1gKS.png

[ivory dove]

like this?

[tardy nimbus]

I uploaded your attachments as gist. That way, they are easier to read for everyone, especially mobile users 👍

[amber sonnet]

yes, good 🙂

now the body

this is the body:

https://i.imgur.com/8QqgK6h.png

first of all, u see that:

if ... then
  foo
else
  bar
endif

so. java has that as well, if-else

write that in ur method now

one big if-else

[ivory dove]

i'll try it

Please guide me

[amber sonnet]

whats unclear to u?

just write an if else

without body for now

just the if else

[ivory dove]

in my country if someone teaches you something you should say this as thanks for teaching you something and i say this to you

[amber sonnet]

oh okay, ur welcome 🙂

[ivory dove]

like this?

[tardy nimbus]

I uploaded your attachments as gist. That way, they are easier to read for everyone, especially mobile users 👍

[amber sonnet]

yes, very good

only the else part missing

https://i.imgur.com/jJtegzL.png

<- means =

so like int s = n / 2;

the 10^s u can do with Math.pow(10, s)

[ivory dove]

is there any other way besides using math.pow? because my class is not there yet and my lecturer might get it wrong if i use math.pow

[amber sonnet]

no

u can create a method that multiplies 10 * 10 * ... in a loop

i guess

[ivory dove]

i apologize in advance. is it correct to use divide and conquer algorithm?

[amber sonnet]

i dont understand

[ivory dove]

I apologize in advance because you don't understand. As I said earlier, in the photo I sent it is a large number multiplication algorithm with a divide and conquer algorithm and what I am asking is whether the coding you taught me uses the divide and conquer algorithm?

like this?

[tardy nimbus]

I uploaded your attachments as gist. That way, they are easier to read for everyone, especially mobile users 👍

[ivory dove]

this for the new result

[tardy nimbus]

I uploaded your attachments as gist. That way, they are easier to read for everyone, especially mobile users 👍

[amber sonnet]

the divide and conquer part is the actual algorithm, the method ur writing

has nothing to do with the power thing

try out ur pangkat method

don't just code. constantly try it out

otherwise u end up with a big mess full of bugs

the pangkat method doesn't work at all right not. u have to fix it

[ivory dove]

I'm really sorry for not replying to your messages for a few hours because I fell asleep. This is for the coding I just made again

[tardy nimbus]

I uploaded your attachments as gist. That way, they are easier to read for everyone, especially mobile users 👍