Appending a string (not at the end but in the middle)

This is the scenario, i got a string "i am a man", the user will key in something like "sad" and it will become "i am a sad man" how do u do this?
[160 byte] By [Alandera] at [2007-11-27 2:34:14]
# 1
So, it's not an append but an insert. http://java.sun.com/j2se/1.5.0/docs/api/java/lang/String.html2 substring and 2 concat
rym82a at 2007-7-12 2:51:29 > top of Java-index,Java Essentials,Java Programming...
# 2
erm can show me an example? plsthank you
Alandera at 2007-7-12 2:51:29 > top of Java-index,Java Essentials,Java Programming...
# 3
When don't you try the link I have given first ?You learn more by trail and error than get an answer from me."I am a man" -> "I am a" with "man""I am a" with "sad" with "man" -> "I am a sad man"
rym82a at 2007-7-12 2:51:29 > top of Java-index,Java Essentials,Java Programming...