Say we have a file that contains some text. We think that there is an anomaly in the text—every first character after the period is in lowercase when it should be in uppercase. In this recipe, we will read that text file and convert each character after the period (.) that is, in lowercase into uppercase.
In this recipe, I assume that you know how to create a text file and how to read a text file. If you don't know how to perform these actions, you will find programs for both of them in Appendix A.