Is it possible to create a java program which can find the answer to any sudoku

This is may sound as a beginner question but thats because i am a beginner. i have just learned the java language and now i am reading essential classes on oracle tutorials.
anyway is this possible ? i think it is and i have been trying to do it but havent been sucessful. and if it is possible is it supposed to be easy ?
i have been trying to do it by making a 2d array of 8 arrays having 8 ints each which is basically a sudoku. and creating a 1d array called possiblity having nos from 1 to 9. then using decision making statements and loops to eliminate the possiblities of each box and repeating until the sudoku is complete
also if you could provide some project ideas that would be really appreciated.
(PS i am still an intermediate at best so please dont provide very difficult project ideas)

f1b8d129-b881-44f7-a736-5eef31471720 wrote:
This is may sound as a beginner question but thats because i am a beginner. i have just learned the java language and now i am reading essential classes on oracle tutorials.
anyway is this possible ?
Yes.
i think it is and i have been trying to do it but havent been sucessful. and if it is possible is it supposed to be easy ?
Maybe.
It should be easy to do a "brute force attack" to find the solution meaning that you simply try each and every possibility.
i have been trying to do it by making a 2d array of 8 arrays having 8 ints each which is basically a sudoku. and creating a 1d array called possiblity having nos from 1 to 9. then using decision making statements and loops to eliminate the possiblities of each box and repeating until the sudoku is complete
shouldn't there be 9 sqares with 9 fields each?
also if you could provide some project ideas that would be really appreciated.
But an array of primitives (int?) will not do the trick. Somehow you have to remember wich positions are fixed. and which numbers are still availabe for the current sqare.
At your level the most obvisual approach may be a second array holding this information.
I'd prefer to build a cusom object representing a square and another custom object to represent a field within this square with two attributes: currentNumber and isFix.
Based on this the Sqare object could have a method to create a new combination by shifting the numbers that are not fix.
If you need further assistance please show the code you have and what problem(s) you have with it.
bye
TPD

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