Suppose that a file includes the following text, using [ at the beginning of a new line:

[ Talks - Java11, Amber, CleanCode 
[ Oceans - plastic pollution, human callousness

Now, suppose that you must remove the delimiter, [, used at the beginning of all lines. You can use the transform() method to customize the margin management, adding the String class:

 <R> R transform (Function<String, R> f)

The following is an example that uses the method transform() to remove the custom margin characters from the multiline text:

String stripped = ` 
                     [ Talks - Java11, Amber, CleanCode 
                     [ Oceans - dying, human callousness, plastic 
                      pollution  
                 `.transform({ 
                    multiLineText.stream() 
                        .map(e -> e.map(String::strip) 
                        .map(s -> s.startsWith("[  ") ?  
                              s.substring("[  ".length())  
                              : s) 
                        .collect(Collectors.joining("
", "", "
")); 
                 }); 

The next section will include some common cases where using raw string literals over traditional strings will benefit you tremendously.