Getting string from a string

Hello,

I need to get string from a string
Eg
This is my string
Development - 123
Support- 456

I need to get the last numbers from the string, like 123, 456 etc.

How can I acheive this?

Thanks

There are plenty of helpful methods in the String class. indexOf and substring are probably worth looking at.

Hello,

Probably , you need to know about sub String method.

Hi Cosmo,
Try this

String yourString = "Developement-123";
String desiredString = yourString.substring(13,15);

In the above code , 13 is the starting position , from where you want to extract the string and 15 is the end position, up to where you can get the String. Also have a look at java.lang.String API to know more such methods.

Regards,
Sultan.

Hi

I think you can use stringtokenizers, - as delimiter for every string or
you can use charAt() and compare it with numbers. then use subString.
I think they will work.

Regards
Vishnu

Hi Cosmos,

are you sure you want to get a String from a String?
Your example looks more like you want to get an int from a String.
In this case, you can also use a scanner. Scanners can get all number formats (ints, doubles, ...) from a String that's gonna be tokenized. Default delimiter is a whitespace.

See example:

[B]import java.util.Scanner;[/B]
 
class Main {
    public static void main(String... args) {
        String array[] = { "Development - 123",
                "Support- 456",
                "nice  32.2 423 string",
                "111 oops 222"};
        int i = 0;
        for (String s : array) {
            System.out.println(s);
            i = getIntAtTail(s);
            System.out.println("\t ---> int i=" + i);
        }
        System.out.println("READY");
    }
 
    static int getIntAtTail(String s) 
        throws IllegalArgumentException {
        Scanner scan = new Scanner(s);
        int i = 0;
        boolean intFound = false;
        while (scan.hasNext()) {
            if (scan.[B]hasNextInt()[/B]) {
                // next int when an int is found
                [B]i = scan.nextInt();[/B]
                intFound = true;
            }
            else{
                // just next when no int was found
                scan.next();
            }
        }
        if (intFound)
            return i;
        else
            throw new IllegalArgumentException(
                    "\nNo int in String:\n\"" + s + "\".");
    }
}

If you throw an exception or return a 0 when no int is in your String is up to you.

Yours,
Bu.
[ September 26, 2006: Message edited by: Burkhard Hassel ]