pomocou streamov:
String s = "a 123b45 c";
System.out.println("Digits: " + s.chars().filter(Character::isDigit).count());
System.out.println("Whitespaces: " + s.chars().filter(Character::isWhitespace).count());
pomocou streamov:
String s = "a 123b45 c";
System.out.println("Digits: " + s.chars().filter(Character::isDigit).count());
System.out.println("Whitespaces: " + s.chars().filter(Character::isWhitespace).count());