«

Hi,

I have a string "1,2"
i want to parse it and get these two values in a seperate variable.

my main intention is to read these two values from a file, where these
values are programmable and changes by user menu.

I am new to java programming, please give suggest some coding
examples.

Thanks in advance!

-Ram

On 28-11-2010 22:13, Ram wrote:
> I have a string "1,2"
> i want to parse it and get these two values in a seperate variable.
>
> my main intention is to read these two values from a file, where these
> values are programmable and changes by user menu.
>
> I am new to java programming, please give suggest some coding
> examples.

String split to convert one string to two strings.

Integer parseInt to convert each of the two strings
to int.

Arne

On 11/28/2010 7:13 PM, Ram wrote:

> I have a string "1,2"
> i want to parse it and get these two values in a seperate variable.
>
> my main intention is to read these two values from a file, where these
> values are programmable and changes by user menu.


Also consider the Scanner class. It takes a file directly:

File file = ...;
Scanner scanner = new Scanner( file );

But you can test it just with a string as shown below in a quick
example. You will have to set the delimiter correctly to match what is
being used in your file:

Scanner scanner = new Scanner( "1,2" ).useDelimiter( ",");
int i = scanner.nextInt();
int j = scanner.nextInt();
System.out.println( i+" "+j );

Prints "1 2".

C.f.:

<http://download.oracle.com/javase/tutorial/essential/io/scanning.html>

On Sun, 28 Nov 2010 19:13:40 -0800 (PST), Ram <>
wrote, quoted or indirectly quoted someone who said :

>I have a string "1,2"
>i want to parse it and get these two values in a seperate variable.
>
>my main intention is to read these two values from a file, where these
>values are programmable and changes by user menu.
>
>I am new to java programming, please give suggest some coding
>examples.

Split it first with regex split. trim, then convert String -> int.

see http://mindprod.com/jgloss/regex.html#SPLITTING
String.trim()
http://mindprod.com/applet/converter.html
--
Roedy Green Canadian Mind Products
http://mindprod.com

In programming, and documenting programs, keep vocabulary consistent and precisely defined! Variation in vocabulary to relieve the tedium is for novels.

[code learner]

Hi Ram,

to parse the value from string you can consider StringTokenizer also.

bye
learner