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  1. #1
    sezzy is offline Member
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    Default Calculating segment costs

    I have been given a task of creating a 'traveling salesman' type programme in which I need to calculate costs.

    I need to create an array for six segments - A-B=2, A-C=3, A-D=1, B-C=4, B-D=2,C-D=3

    Now I'm not even sure that I've coded it correctly, I'm trying to ascertain the array...any help would be appreciated. I know I've incorrectly coded my 'answer', but I'm working on that now...I know I need to get it to loop, but I'm having a bit of a struggle.

    Any help is appreciated.

    import java.util.*;
    public class Travel2 {
    public static void main(String[] args) {

    int[] cost=new int[6];
    int index;

    cost [0] = 2;
    cost [1] = 3;
    cost [2] = 1;
    cost [3] = 4;
    cost [4] = 2;
    cost [5] = 3;

    /*Create a new scanner to read inputs*/
    Scanner reader = new Scanner (System.in);

    System.out.println("Enter ID of segment 0 of path: ");
    reader.nextInt();
    System.out.println("Enter ID of segment 1 of path: ");
    reader.nextInt();
    System.out.println("Enter ID of segment 2 of path: ");
    reader.nextInt();

    System.out.println("Total cost for this path: "+ (cost[0] + cost[1] + cost[2]));
    }

    }


    Cheers,

    Sez

  2. #2
    JosAH's Avatar
    JosAH is offline Moderator
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    Default Re: Calculating segment costs

    Quote Originally Posted by sezzy View Post
    I need to create an array for six segments - A-B=2, A-C=3, A-D=1, B-C=4, B-D=2,C-D=3
    How do we have to read this? Those are not just six linear equations are they?

    kind regards,

    Jos
    cenosillicaphobia: the fear for an empty beer glass

  3. #3
    sezzy is offline Member
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    Default Re: Calculating segment costs

    Sorry, I should have been clearer, I know the answer is right in front of me, I'm overthinking it.

    They correlate to segment numbers. I've been given a table with segment ID, Segment name and Travel cost, so A-B=$2million and so on.

    I need to calculate costs based on user input to four destinations (three inputs).

  4. #4
    Tolls is offline Moderator
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    Default Re: Calculating segment costs

    I think that's "distance" between all 4 places (A, B, C, D).
    Please do not ask for code as refusal often offends.

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  5. #5
    sezzy is offline Member
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    Default Re: Calculating segment costs

    Yes, so when all is said and done, the program needs to calculate A-D-C-B = 1+3+4=8

    I think I need to sleep on it and come back fresh in the morning, hopefully I'll be thinking clearer, at the moment I'm not even sure if I need to index it to get it to calculate as it should...

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