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    <p>If you can use x = y instead of x, y then you can use the Properties class.</p> <p>If you do need to have x, y then look at the <a href="http://java.sun.com/javase/6/docs/api/java/util/Scanner.html" rel="noreferrer">java.util.Scanner</a> you can set the delimiter to use as a separator (the javadoc shows examples of doing that).</p> <pre><code>import java.io.File; import java.io.FileNotFoundException; import java.util.Scanner; class Main { public static void main(final String[] argv) { final File file; file = new File(argv[0]); try { final Scanner scanner; scanner = new Scanner(file); while(scanner.hasNextLine()) { if(scanner.hasNext(".*,")) { String key; final String value; key = scanner.next(".*,").trim(); if(!(scanner.hasNext())) { // pick a better exception to throw throw new Error("Missing value for key: " + key); } key = key.substring(0, key.length() - 1); value = scanner.next(); System.out.println("key = " + key + " value = " + value); } } } catch(final FileNotFoundException ex) { ex.printStackTrace(); } } } </code></pre> <p>and the Properties version (way simpler for the parsing, as there is none)</p> <pre><code>import java.io.BufferedReader; import java.io.FileReader; import java.io.IOException; import java.io.Reader; import java.util.Properties; class Main { public static void main(final String[] argv) { Reader reader; reader = null; try { final Properties properties; reader = new BufferedReader( new FileReader(argv[0])); properties = new Properties(); properties.load(reader); System.out.println(properties); } catch(final IOException ex) { ex.printStackTrace(); } finally { if(reader != null) { try { reader.close(); } catch(final IOException ex) { ex.printStackTrace(); } } } } } </code></pre>
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    1. POWhat is the best way to read a comma delimited configuration file?
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    1. CO@Oscar - Who cares?
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      1. USCalvin Allen
    2. COI used to put { on the line until the day I had to add a single line of code to a method that was about 10 pages long an 4 pages wide with a mix of brace styles (some missing, some on the same line and some on their own line). Took me the better part of a day.
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    3. COOn that day I decided to code in such a way that nobody would ever have to go through what I had to do that day. A very defining day indeed :-)
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