how to write a program

if the input is aabbbcddddaa and the output is a2b3c1d4a2

What have you tried? Where are you stuck? Where is your SSCCE?

Please read the link in my signature on asking questions the smart way, then try again.

i didn't try.this ques was asked in an interview...

You've posted this in a forum titled "what's wrong with my code?", yet you haven't posted any code. I'm not really sure what you want us to do here.

Hi , debag this code and try to understand

spoonfeeding removed by moderator

basha, please read this before posting again: http://www.javaprogrammingforums.com...n-feeding.html

I didn't try but you give a new question so now i will surely try it and if anybody knows it's answer than tell me ..