Sure, removing leading and trailing whitespaces from a string in Groovy is pretty straightforward. You can use the trim() method to remove both leading and trailing whitespaces from a string. Here's an example:
def text = " hello groovy world! "
def trimmedText = text.trim()
In this example, the text variable has leading and trailing whitespaces. We use the trim() method to remove the whitespaces and store the result in the trimmedText variable.
You can also chain multiple methods together to remove other types of whitespace characters, such as tabs and line breaks. Here's an example:
def text = "\t hello\ngroovy world!\t\n"
def trimmedText = text.trim().replaceAll(/[\t\n]/, "")
In this example, we use the trim() method to remove leading and trailing spaces as well as tabs and line breaks. We then use the replaceAll method with a regular expression to remove any tabs and line breaks within the string.
I hope that helps! Let me know if you have any other questions.