Cutting string into peaces

Question

i have to cut string into equal length peaces according to
the length of the first word, and delete spaces between the words to one space like this
( _ = space )
"_ _ _ How__ do__ you__ do__today "
now it returns
How
__d
o__
you
__d
o__
tod
ay_
should be
How
do_
you
do_
tod
ay_
the following code cuts the string into equal length
peaces but it doesn�t cut the spaces between words so
that there is only one space that between the words.
How can i do that????
import java.io.*;
class Cutting{
     public static void main(String []args)throws IOException {
     BufferedReader stdin=new BufferedReader(new InputStreamReader(System.in));
     String str=" How do you do today ";
     String[] cutStr;
     char spr= (' ');
     char rpl= (' ');
     int index=0;
     int offset =0;
     cutStr=cut(str,spr,rpl,stdin);
     for(index=0;index<str.length();index++)
     System.out.println( cutStr[index]);
     //System.out.print("\n" +(cutStr=cut(str, spr, rpl))+"totanoi");
     }//main
static String[] cut(String str, char spr, char rpl,BufferedReader stdin)throws IOException {
str = str.trim();
int wordLen = str.indexOf(spr);
if (wordLen == -1) {
return new String[]{ str};
int words = (int)Math.ceil(str.length() / (double)wordLen);
String[] cutStr = new String[words];
int offset = 0, index = 0;
for (; (offset + wordLen) < str.length(); ++index) {
cutStr[index] = str.substring(offset, (offset + wordLen)).replace(spr, rpl);
offset += wordLen;
cutStr[index] = str.substring(offset, str.length()).replace(spr, rpl);
while (cutStr[index].length() < wordLen) {
cutStr[index] += rpl;
return cutStr;
}//class

Answer 1

use the StringTokenizer class.. very easy to use.. in this case, youd "jump" over all the spaces, and retrieve only the words, do something like:
StringTokenizer st = new StringTokenizer(source, " ");
StringBuffer  sb = new StringBuffer();
while (st.hasMoreTokens()) {
  String next = st.getNext();
if ( next != null && next.length() >= 1 ) {
  sb.append( next + " " ); //add next word, and trailing space.
  return sb.toString().trim();  //return source with ONE space between each word
             //trim() called to remove leading/trailing spaces.hope that helps.. i have not tested it, so you might need to change some of the arguments in the StringBuffer/Tokenizer... just look at java docs for info on those two classes and you shouldnt have a problem with this.
good luck!