Answers for "java string replace all characters with *"

replace all occurrences of a character in a string java

String phrase = "An_Apple_A_Day_Keeps_The_Doctor_Away";
System.out.println(phrase.replaceAll("_", " ");
// prints 'An Apple A Day Keeps The Doctor Away'

java replaceall single character

.replaceAll("(?<!\\S)[^ ](?!\\S)", " ").trim()