Java Manipulating a String: Solving the 6G2N42B Puzzle

[NiaSphinx]

Hi guys,

I was wondering if anyone could explain to me/point me in the right direction on how to manipulate a String read in from the user in a particular way. I'm trying to read in a String, and then I want to sort of split the string up into ints and chars and associate them to variables.
For instance:
If I have a string: 6G2N42B, is there a way to access the ints '6', '2', '42' and a way to access the chars 'G', 'N' and 'B' ?

Thanks

 

[daniel_i_l]

You can use the Scanner class:
http://java.sun.com/j2se/1.5.0/docs/api/java/util/Scanner.html
For example, the output of

import java.util.Scanner;
public class Hello
{
public static void main(String[] argv)
{
String s = "a 123 b";
Scanner scan = new Scanner(s);
System.out.println(scan.next());
System.out.println(scan.next());
System.out.println(scan.next());
}
}

is:
a
123
b

 

[Borg]

This will work without having to put empty spaces in your input string:

String inputString = "6G2N42B";
String expression = "(\\d*+)"; // Searches for all groups of numbers
Pattern myPattern = Pattern.compile(expression);
Matcher matcher = myPattern.matcher(inputString);
while(matcher.find()){
if(!matcher.group().equalsIgnoreCase("")){
System.out.println("matcher.group(): " + matcher.group());
}
}

expression = "(\\D*+)"; // Searches for all groups of non-numbers
myPattern = Pattern.compile(expression);
matcher = myPattern.matcher(inputString);

while (matcher.find()) {
if(!matcher.group().equalsIgnoreCase("")){
System.out.println("matcher.group(): " + matcher.group());
}
}

Output:


matcher.group(): 6
matcher.group(): 2
matcher.group(): 42
matcher.group(): G
matcher.group(): N
matcher.group(): B

 

[NiaSphinx]

Thanks, I'll give that a try :)