How to count a specefic word in aparagraph using string ????

[Emi Mus]

write a java program to count aword in aparagraph?
ex: word "is" in "is name is the name is yours".

[Sean Pedersen]

public class Main {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        String string = "is name is the name is yours";
        String match = "is";
        System.out.println(instancesOf(string, match));
    }

    static int instancesOf(final String string, final String match) {
        int ret = 0;
        final int stringlen = string.length();
        final int matchlen = match.length();
        for (int i = 0; i < stringlen - matchlen; i++) {
            if (string.substring(i, i + matchlen).contains(match)) {
                ret++;
            }
        }
        return ret;
    }
}

The function doesn't care about spaces. it will match is in island.