CODEWITHSUNDEEP
javajava.util.scanner
Lisa
Lisa

Reputation: 109

Ignoring hyphens while using Scanner

Is there any easy way to ignore hyphens while using scanner? I have a program that will allow you to buy an area (2D array) so if the user want to buy area 3-6, I want scanner to put the number before the hyphen in row and the number after in column. Is there any easy way to do this?

String[][] buyer = new String[10][15];
int row;
int column; 
System.out.print("Specify which area you want to buy: ");
row = scan.nextInt();
column = scan.nextInt();

String name;
System.out.print("Name of the buyer: ");
name = scan.nextLine();
buyer[row][colum] = name

Upvotes: 1

Views: 1218

Answers (4)

Tim Bender
Tim Bender

Reputation: 20442

I think you can use Scanner.skip

row = scan.nextInt();
scan.skip("-");
column = scan.nextInt();

Upvotes: 0

FIG-GHD742
FIG-GHD742

Reputation: 2486

Scanner has some bad and some good side, the bad side is this not work if you not know what next chars is.

You can use Scanner.hasNextInt() and if not this is true, read char for char unto hasNextInt is true.

Upvotes: 0

meirrav
meirrav

Reputation: 771

if your input is always in this format (num1-num2) then you can use :

String area = scan.next();
StringTokenizer st = new StringTokenizer(area);
st.split("-");
int row = Integer.parse(st.nextToken());
int col = Integer.parse(st.nextToken());

Upvotes: 1

Vala
Vala

Reputation: 5674

Personally I'd read it as a String, then you can use String.split() to split it in to two values that you can then parse to ints. There may be other options though.

Upvotes: 0

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