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  1. #1
    New to the CF scene
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    Oct 2008
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    Help on my java program

    I tried to make a small program that reads a string of values for the user, then try's to find a pattern. It doesn't go much in depth, , only sees simple patterns, only sees positive patterns, it only sees whole numbers, and it just doesn't work. I would improve upon it if only I could just get the basic thing to work. I mean, it works some of the time with trivial things like "5, 10, 15, 20" and comes up with 1x + 5. But if I input a pattern that was made by multiplication, such as "20, 40, 80, 160", It would come up with 1x + 20. Or if I put in "5, 15, 45", it would say "I have found the answer! 2x + 5".

    Code:
    import java.util.Scanner;
    
    public class patternrecog {
        public static void main (String[] args){
    Scanner keyboard = new Scanner(System.in);
    
    int a, x = 0;
    
    System.out.println("How many values are you going to put in your string of numbers?");
    a = keyboard.nextInt();
    a = a - 1;
    
    int[] aray;
    aray = new int[99];
    int max = 99;
    
    System.out.println("Enter a string of numbers and I'll see if I can find the pattern:");
    
    do{
        x = x + 1;
        aray[x] = keyboard.nextInt();
        
    }while(x <= a);
    
    for(int i=0; i<max; i++){ //meant to bruteforce the answer. i is the multiplication factor
        for(int j=0; j<=max; j++){ //j is the addition factor
           if(((i * aray[0] + j) == aray[1]) && ((i * aray[1] + j) == aray[2])){
               System.out.println("I have found the answer!  " + i + "x" + " + " + j);
               }
           }
            
        }
    }
    
        }
    Last edited by thelastalive; 10-11-2008 at 04:19 AM.


 

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