Computer FAQs & Tips

String array = "one,two,three,four,five,six,seven,eight,nine";

String[] words = {one,two,three,four,five,six,seven,eight,nine};

/**
 * Computer-FAQS.com
 * @author Manet Yim (manet.yim at gmail dot com)
 * @license: GPL v3.0
 */
public class StringToArray {
 
    /**
     * Testing method
     * @param args
     */
    public static void main(String[] args) {
        // your raw string in a fixed format
        String array = "one,two,three,four,five,six,seven,eight,nine";
 
        // converting raw string input array object and display it
        String[] convertedArray = StringToArray.convert(array, ",");
        for (int i = 0; i<convertedArray.length; i++){
            System.out.println(convertedArray[i]);
        }
    }
 
    /**
     * Convert a String s to an Array, where each element in string 
     * seperated by sep
     * 
     * @param str String to be converted
     * @param sep Element seperator
     * @return Array of strings
     */
    public static String[] convert(String str, String sep) {
        StringBuffer sBuf = new StringBuffer(str);
 
        // there is at least one element in the array
        int aSize = 1;
 
        // Counting how many separator in the string
        // result will be the size of new array
        for (int i = 0; i < sBuf.length(); i++) {
            if (sep.indexOf(sBuf.charAt(i)) != -1)
                aSize++;
        }
 
        // create new array object with predefined size
        String[] elements = new String[aSize];
 
        int x, y = 0;
        if (sBuf.indexOf(sep) != -1) {
            while (sBuf.length() > 0) {
                if (sBuf.indexOf(sep) != -1) {
                    x = sBuf.indexOf(sep);
                    if (x != sBuf.lastIndexOf(sep)) {
                        elements[y] = sBuf.substring(0, x);
                        y++;
                        sBuf.delete(0, x + 1);
                    } else if (sBuf.lastIndexOf(sep) == x) {
                        elements[y] = sBuf.substring(0, sBuf.indexOf(sep));
                        y++;
                        sBuf.delete(0, sBuf.indexOf(sep) + 1);
                        elements[y] = sBuf.toString();
                        y++;
                        sBuf.delete(0, sBuf.length());
                    }
                }
            }
        } else {
            elements[0] = sBuf.toString();
        }
        sBuf = null;
        return elements;
    }
 
}