java string replace character at position
String str = in.nextLine(); //Original String
char cr = in.next().charAt(0); // character to replace
int index = in.nextInt(); // Index where replaced
str = str.substring(0, index) + cr + str.substring(index + 1);// modified stringjava replaceall single character
.replaceAll("(?<!\S)[^ ](?!\S)", " ").trim()Copyright © 2021 Codeinu
Forgot your account's password or having trouble logging into your Account? Don't worry, we'll help you to get back your account. Enter your email address and we'll send you a recovery link to reset your password. If you are experiencing problems resetting your password contact us
