Replacing a part of a String with a new String

Question

Hi everybody,
is there a option or a method to replace a part of a String with a String???
I only found the method "replace", but with this method I only can replace a char of the String. I don't need to replace only a char of a String, I have to replace a part of a String.
e.g.:
String str = "Hello you nice world!";
str.replace("nice","wonderfull");   // this won't work, because I can't replace a String with the method "replace"
                                    // with this method I'm only able to replace charsDoes anyone know some method like I need???
Thanks for your time on answering my question!!
king regards
IceCube-D

Answer 1

do check java 1.4 api, I think there is a method in it, however for jdk1.3 you can use
private static String replace(String str, String word,String word2) {
     if(str==null || word==null || word2 == null ||
           word.equals("") || word2.equals("") || str.equals("")) {
          return str;
     StringBuffer buff = new StringBuffer(str);
     int lastPosition = 0;
     while(lastPosition>-1) {
          int startIndex = str.indexOf(word,lastPosition);
          if(startIndex==-1) {
               break;
          int len = word.length();
          buff.delete(startIndex,startIndex+len);
          char[] charArray = word2.toCharArray();
          buff.insert(startIndex,charArray);
          str = buff.toString();
          int len2 = startIndex+word2.length();
          lastPosition = str.indexOf(word,len2);
     return buff.toString();