Iterate through String with multiple lines

Question

I got some data:

def data = "# some useless text\n"+
        "# even more\n"+
        "finally interesting text"

How can I get the "interesting part" of that? So basically all lines, NOT starting with #.

Answer 1

One Groovy option would be:

def data = '''# some useless text
             |# even more
             |finally interesting text'''.stripMargin()

List lines = data.split( '\n' ).findAll { !it.startsWith( '#' ) }

assert lines == [ 'finally interesting text' ]

Answer 2

data.eachLine {
    if (!it.startsWith( '#' )
        println it
}

Answer 3

Use split method to get substrings then check each one starts with "#" or not. For example:

String[] splitData = data.split("\n");
for (String eachSplit : splitData) {
  if (!eachSplit.startWith("#")) {
    print(eachSplit);
  }
}

Answer 4

How's about splitting the string with \n character via the split function

Now you can just test each string if it starts with # or not via String.startsWith("#") .