Untitled

package com.mycompany.zanaA;

public class ZanaA {

    public static void main(String[] args) {
        System.out.println(istTeilwortAnIndex("adasbcdef", "kf", 1));
        System.out.println(findeTeilWort("abcdeabf", "ab"));
        System.out.println(loescheTeilwort("abcdeabf", "ab"));
        System.out.println(loescheAlleTeilwort("abcdeabf", new String[]
        {
            "ab", "cd"
        }));
    }

    static boolean istTeilwortAnIndex(String w, String v, int i) {
        //10       -    4
        for (int j = i; j < w.length() - v.length(); j++)
        {
            String vTmp = "";
            for (int k = j; k < v.length() + j; k++)
            {
                vTmp += w.charAt(k);
            }
            if (vTmp.equals(v))
            {
                return true;
            }
        }
        return false;
    }

    static int findeTeilWort(String w, String v) {
        if (istTeilwortAnIndex(w, v, 0))
        {
            for (int i = 0; i < w.length(); i++)
            {
                String vTmp = "";
                for (int k = i; k < v.length() + i; k++)
                {
                    vTmp += w.charAt(k);
                }
                if (vTmp.equals(v))
                {
                    return i;
                }
            }
        }
        return -1;
    }
// System.out.println(loescheTeilwort("abcdeabf", "ab"));

    static String loescheTeilwort(String w, String v) {
        if (!istTeilwortAnIndex(w, v, 0))
        {
            return null;
        }
        String tmp = "";
        int index = findeTeilWort(w, v);
        for (int i = 0; i < w.length(); i++)
        {
            if (i < index || i >= index + v.length())
            {
                tmp += w.charAt(i);
            }
        }

        return tmp;
    }

//        System.out.println(loescheAlleTeilwort("abcdeabf", new String[]{"ab","cd"}));
    static String loescheAlleTeilwort(String w, String[] vArray) {
        String tmp = w;

        for (int j = 0; j < w.length(); j++)
        {
            for (int k = 0; k < vArray.length; k++)
            {
                if (istTeilwortAnIndex(tmp, vArray[k], 0))
                {
                    tmp = loescheTeilwort(tmp, vArray[k]);
                }
            }
        }

        return tmp;
    }
}