Split string into multiple strings if too long

Heres what I'm trying to do:
String myString = "This is my string that is too long!";
Lets say I only have room for 10 letters per line. I would need to split myString into 4 lines without splitting the words in half.

What the output should look like:
"This is my"
"string"
"that is too"
"long!"

This is what I tried doing, it cuts words in half and misses the last part of the string:

Code:java

 
String[] txt = myString.trim().split(" ");
int max = 10;
List<String> lines = new ArrayList<String>();
String s1 = "";
if (!(myString.length() > max)) {
    lines.add(myString);
} else {
    for (int i = 0; i < txt.length; i++) {
    if (!((s1 + txt + " ").length() <= max)) {
        lines.add(s1 + txt);
        s1 = "";
    }
    s1 += txt + " ";
    }
}
int yo = 0;
for (String s : lines) {
//draw(s, x, yo)
yo += 10;
}

 

Code:Java

String msg = "this,is,a,message,that,can,be,split,into,an,array";
String[] splitMsg = msg.split(",");
 
// To test.
for (i=0;i<splitMsg.length();i++) {
log.info(splitMsg);
}

See if you can make something out of this.

 

r3Fuze You could find the last index of a space before 10 characters using lastIndexOf(" ", 10) if I recall correctly. You could them grab the substring between the start and that index (To get the line), grab the string between that index and the end, and repeat the process on the remainder until lastIndexOf returns -1.

RROD Try reading the OP next time.

 

Yeah, I realised after posting.

 

Code:java

 
String[] tokens = myString.trime().split(" ");
List<String> lines = new ArrayList<String>();
String temp = "";
for(String s: lines)
{
   if(s.length() + temp.length() > 10)
   {
      lines.add(temp);
      temp = "";
   }
   temp = temp + s;
}
 

The problem is that a word that is longer than 10 will make an infinite loop, so you could do this:

Code:java

 
for(String s: lines)
{
   if(s.length() > 10)throw new IllegalArgumentException("This string is too long!");
   if(s.length() + temp.length() > 10)
   {
      lines.add(temp);
      temp = "";
   }
   temp = temp + s;
}