Switch Statement is making the first case skip a line

Question

So I'm guessing that the solution to this is going to be really simple but I have no idea what I'm looking for so I'd like some help. What happens is that when I run the program, and choose case 1. It prints both "dog's name" and "dogs race" without giving me a chance to fill in the dogs name. So when I choose case 1 I start out only getting to fill in dogs race, how heavy, and how old it is! here is the code I'm using...

do {
        System.out.println("(1 - reg\n2 - tail\n3- delete\n4-exit\nEnter number: ");

        // so this is where the switch stuff starts
        int option=sc.nextInt();
        switch (option) {



        case 1: System.out.println("Dog's Name: ");
            String na=sc.nextLine();

            System.out.println("Dog Race: ");
            String ra=sc.nextLine();

            System.out.println("How heavy?");
            double wey=sc.nextDouble();

            System.out.println("How old?");
            double ag=sc.nextDouble();

            dog doggy= new dog(na, ra, wey, ag);
            kennel.add(doggy);
            break;

        case 2: System.out.println("its a tail");
            break;

        case 3: System.out.println("you delete");
            break;

        case 4: System.out.println("QUITTING\n(Data was not saved srry.)");
            play = false;


        default: System.out.println("try again");
            }
        }while(play);

possible duplicate of [Scanner issue when using nextLine after nextInt](http://stackoverflow.com/questions/7056749/scanner-issue-when-using-nextline-after-nextint) — Paul Bellora, Dec 06 '11 at 23:41

score 2 · Answer 1 · answered Dec 06 '11 at 23:38

2

I believe you need to call nextLine() after your call to nextInt(), because that hasn't advanced the scanner to the next line yet.

answered Dec 06 '11 at 23:38

Paul Bellora

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score 1 · Answer 2 · answered Dec 06 '11 at 23:42

1

There's a newline reminder from your first sc.nextInt, you can change the delimiter to \n or just call nextLine(); just after reading the option (Using sc.useDelimiter("\n") )

answered Dec 06 '11 at 23:42

Slash

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score 0 · Answer 3 · answered Dec 07 '11 at 01:54

0

Try:
int option=Integer.parseInt(sc.nextLine());
This has both the effect of advancing the cursor to the next line and getting the typed number.

answered Dec 07 '11 at 01:54

o_o

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Switch Statement is making the first case skip a line

3 Answers3