Java program to convert AABBB string to 2A3B.

Question

Java program which gives output 2A3B when user inputs AABBB in a one single String. Another example :
input string: CCCCBBB
Output string: 4C3B

Answer 1

https://www.sololearn.com/Discuss/769959/?ref=app

Answer 2

Ok @Devang then I will try to help you if I can.

Answer 3

https://code.sololearn.com/cUv4Hw6HEtXP/#java
Here is my code @Devang

Answer 4

Have a go, post what you have and we can help :)
A few tips for how I might do it.. turn a string to a char array, and loop through the array. If the next letter is equal to the current one, increment a counter otherwise add what letter/number you currently have to a StringBuilder and reset counter to one. loop until we hit the last letter

Answer 5

As I said, use a loop. Could be a normal or enhanced for loop or a while loop if you use an Iterator. You're comparing individual characters in a string so use String.toCharArray() or String.charAt(i) (use Google to check out the docs on these methods if you're not familiar with them)
so some pseudocode for the next bit:
if (this and next letter are the same)
add to counter
else
put counter and THIS letter in StringBuilder
reset counter to 1 (we have at least one of 'next' letter)

ensure loop doesn't make you go outside the index range!

Answer 6

@Akash i need help...

Answer 7

@DanWalker give any logic.