Java Array problem

Question

How do I make a sudoku like program in java(not the game) just to creat an array of 3x3 dimensions that fills the rows and columns with random numbers.
IMPORTANT: the numbers must no repeat itself.

Answer 1

hi • WTF [•_•] •

here is how you’d make a 3x3 array..

int[ ][ ][] sample = { {1, 2, 3}, {4, 5, 6}, {7,8,9}};
then you’d just need to use the random function in java

java.util.Random

Random random = new Random();
return random.ints(min, max)
.findFirst()
.getAsInt();

Answer 2

Thanks

Answer 3

Ollie Q same dude, to fill the array automatically I need a for bucle but how do i make sure the numbers being generated doesnt repeats itself? If possible using math.random

Answer 4

hi • WTF [•_•] •
check out this code...

https://code.sololearn.com/cbxUC4d1T4eh/?ref=app
you’ll just have to alter the if condition so that it can iterate throught 3.
sorry for the slow response i accidental wrote the code in javascript before i remeber you need java

Answer 5

Ollie Q ohh No problem man, I'll get back when I'm through with it. Thanks for your time :)

Answer 6

no problem • WTF [•_•] •
let me know if you have any more problems.
happy coding

Answer 7

no problem • WTF [•_•] •
happy coding

Answer 8

Ollie Q ok thanks man 😊

Answer 9

https://code.sololearn.com/cU1SZM1IJVan/?ref=app

Hi i hope this helps

Answer 10

Maybe you could make an if statement to test if the next number matches any of the other numbers?

Example: After telling it to pick a number, then put,
if(!sample[2] == sample[1]){
input code } else [
pick new number
}
I don't know, i'm learning as well, but it works in my mind lol