String Operation
Split String
To split a string on a delimiter
String [] strArray = string.split("<delimiter>");Join String
To join the characters/string on a delimiter
String joinedString = String.join("<delimiter>",<list/array_of_string>);Change case
To convert the string to lower case
string.toLowerCase();to convert it to upper case
string.toUpperCase();Substring
To create the sub-stirng
String subString = s.substring(startIndexInclusive,endIndexExclusive);Repeat
To repeat the string
String repeatedString = s.repeat(times);