Run-length decompression

Question

CS student here. I want to write a program that will decompress a string that has been encoded according to a modified form of run-length encoding (which I\'ve already written c

Answer 1

Assuming that the uncompressed data does never contain digits: Iterate over the string, character by character until you get a digit. Then continue until you have a non-digit (or end of string). The digits inbetween can be parsed to an integer as others already stated:

int count = Integer.parseInt(str.substring(start, end));