can't find the logic

hy all, i can't figure out the logic of this

Code:

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| | | | | | | | | | |
| | | | | | | | | | |
|A|*|*|*|*| | | | | |
| | | | |*| | | | | |
| | | | |B| | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |

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The position of A and B is random. And A and B is linked by *. What is the logic of this?? do i have to make an array 10 x 10, and access the index randomly to put A??? or what??

You have coordinates (xa, ya) and (xb, yb) the step to take in the x direction is xd= (xb > xa)?1:-1 and similar for yd; now loop over x:

Code:

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for(; xa != xb; xa+= xd)
  // do something with coordinate (xa, ya)

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and similar again with ya and yd.

kind regards,

Jos

Thanks for the respon. but, i don't know what you mean

Quote:

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Originally Posted by riris

Thanks for the respon. but, i don't know what you mean

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Neither do I, so we're even.

kind regards,

Jos ;-)

i have found the way to place A and B randomly. Here is my scrip

Code:

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import java.util.Random;

public class OrderMap {
    public static void main(String args[]){
       
        int Y=10;
        int X=10;
       
        OrderMap baru = new OrderMap();
       
        int y = baru.ran();
        int x = baru.ran();
        for(int i=0; i<Y; i++){
            for(int j=0; j<=X; j++){
                if(y==x){
                    x=x+1;
                }
                System.out.print("|");
                if(i==y && j==x){
                    System.out.print("A");
                }
                else if(i==x && j==y){
                    System.out.print("B");
                }
                else if(y>x){
                    if(i==x && j==x){
                        System.out.print("*");
                    }
                    else{
                        System.out.print(" ");
                    }
                }
                else if(y<x){
                    if(i==x && j==x){
                        System.out.print("*");
                    }
                    else{
                        System.out.print(" ");
                    }
                }
            }
            System.out.println("");
        }
        System.out.println(y + " " + x);
    }
   
    private int rand;
   
    public int ran(){
        int nilai[]= new int[10];
       
        Random create = new Random();
        rand = create.nextInt(nilai.length);
        return rand;
    }
}

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but still, i can conect A and B with *. Is there any suggestion???

You've been cross posting this question on can't find the logic (Beginning Java forum at JavaRanch). The solution given by tarun mall is your solution.