Dot behavior in regex patterns

Question

Pattern p2 = Pattern.compile(\".*\");
Matcher m2 = p2.matcher(\"true\");
System.out.println(m2.matches() + \" [\" + m2.group() + \"]\");

When I use

Answer 1

[] is the character class and most inside it stand for their actual symbol. Dot in this case would just be a dot and not a dot with special meaning in regex.