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    <p>You are reading the <code>choice</code> tow times within the while loop. Move one instance out as below:</p> <pre><code> getIDs(); pathCalc(); System.out.println("Enter 0 to exit or any other number"+ " to evaluate another path:"); int choice = end.nextInt(); while(choice != 0){ //getIDs(); pathCalc(); System.out.println("Enter 0 to exit or any other number"+ " to evaluate another path:"); choice = end.nextInt(); } </code></pre> <p>Also, there is not need of extra flag. you an use <code>choice</code> itself in the condition as mentioned above.</p> <p><strong>Your while loop will not start, if user enter <code>0</code> in the beginning; and the loop will terminate automatically when user enters <code>0</code> afterwards.</strong></p> <p><strong>EDIT:</strong> Updated program.</p> <pre><code>public class AssignmentArrays { static int[] data = new int[6]; static Scanner seg; public static void getIDs() { int[] data = new int[6]; data[0] = 0; data[1] = 0; data[2] = 0; data[3] = 0; data[4] = 0; data[5] = 0; /* Segment values */ System.out.println("Enter cost for segment 0:"); data[0] = seg.nextInt(); System.out.println("Enter cost for segment 1:"); data[1] = seg.nextInt(); System.out.println("Enter cost for segment 2::"); data[2] = seg.nextInt(); System.out.println("Enter cost for segment 3:"); data[3] = seg.nextInt(); System.out.println("Enter cost for segment 4:"); data[4] = seg.nextInt(); System.out.println("Enter cost for segment 5:"); data[5] = seg.nextInt(); } public static void pathCalc() { int pathCost; System.out.println("Enter ID of segment 0 of path:"); int node1value = seg.nextInt(); System.out.println("Enter ID of segment 1 of path:"); int node2value = seg.nextInt(); System.out.println("Enter ID of segment 2 of path:"); int node3value = seg.nextInt(); /* Path cost calculation */ pathCost = data[node1value] + data[node2value] + data[node3value]; System.out.println("The cost of the trip is: $" + pathCost); } public static void main(String[] args) { seg = new Scanner(System.in); getIDs(); pathCalc(); System.out.println("Enter 0 to exit or any other number" + " to evaluate another path:"); int choice; choice = seg.nextInt(); while (choice != 0) { getIDs(); pathCalc(); System.out.println("Enter 0 to exit or any other number" + " to evaluate another path:"); choice = seg.nextInt(); } seg.close(); } } </code></pre>
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    1. USYogendra Singh
    1. USYogendra Singh
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    1. COThis does not achieve what I need to do. I have two methods which are executed before the main method. First the program needs to read user input to an array getIDs();, then the program ask user for 3 ids to calculate a price pathCalc(); User is then asked what he/she wants to do, calculate another path or exit. If >=1 is entered, pathCalc();. After this user is asked again if to pathCalc(); or exit.
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      1. USKronos
    2. CO@Kronos: I updated the answer. Hope it works as you expect, otherwise, please share your `pathCalc();` and `getIDs();` method summary, which will help me understand your question better.
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    3. COI updated my question. I get two exceptions. Hopefully you better understand now.
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