While loop printing

Question

How come my while loop continues to print "Please enter stock length(mm): "

code:

while (true) {
            // input stocks
            System.out.print("Please enter stock length(mm): ");
            Scanner sc = new Scanner(System.in);
            int stockLength = sc.nextInt();
            System.out.print("Please enter quantities of this stock length: ");
            int stockQuantity = sc.nextInt();
            Stocks stockObj = new Stocks(stockLength,stockQuantity);
            stockList.add(stockObj);
            System.out.print("Are you done? (y/n): ");
            String done = sc.nextLine();
            if (done == "y" || done == "yes") {
                break;
            }
        }

Output:

Please enter stock length(mm): 4
Please enter quantities of this stock length: 4
Are you done? (y/n): Please enter stock length(mm):

Susie · Answer 1 · 2014-06-03T18:54:29.987

4

Instead of sc.nextLine(), use sc.next()

String done = sc.next();
if (done.equalsIgnoreCase("y") || done.equalsIgnoreCase("yes")) {
     System.out.println("breaking out of loop " + "Value of done: " + done)
     break;
}

edited Jun 03 '14 at 18:54

answered Jun 03 '14 at 18:19

Susie

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the problem is still persistent =/ – Liondancer Jun 03 '14 at 18:20
@Liondancer See(above) if it enters the if block and also check the value of done. – Susie Jun 03 '14 at 18:22
hmm, it doesnt enter the block – Liondancer Jun 03 '14 at 18:23
check the value of "done" before it enters the loop. – Susie Jun 03 '14 at 18:24
nothing but whitespace even when i enter `"y"` or `"yes"` – Liondancer Jun 03 '14 at 18:27
Once you fix your scanner and try the above, your program should work fine. – Susie Jun 03 '14 at 18:41
Is there something wrong with the my scanner usage? The edits you made didnt fix the issue =[ same problem is occuring – Liondancer Jun 03 '14 at 18:43

While loop printing

1 Answers1