Finding substring from string.

Question

I'll have to find substring from another string. Substring to find can be example: CVB and the string can be example ACHGVNB.
Give me some hints about what methods I should use.

Answer 1

Like this:public class Test {
    public static void main (String[] parameters) {
        String sub;
        String text;
        if (parameters.length == 2) {
            sub = parameters[0];
            text = parameters[1];
        } else {
            sub = "levi_h";
            text = "l e v i _ h";
        System.out.println (isSub (sub, text));
    private static boolean isSub (String sub, String text) {
        int s = 0;
        int t = 0;
        while ((s < sub.length ()) && (t < text.length ())) {
            if (sub.charAt (s) == text.charAt (t)) {
                s ++;
            t ++;
        return s == sub.length ();
}Kind regards,
Levi