I know that there are different ways to solve this task, but I need a particular way using replaceAll() method. I just stuck with right condition in the expression.
So I have a method like this:
public static void handleComments(List<Comment> comments, int maxTextLength) { comments.replaceAll(comment -> comment.getText().length() > maxTextLength ? *what should be here?* : comment); } class Comment { private final String text; public Comment(String text) { this.text = text; } public String getText() { return text; } }
The case is next: I pass to the method some comments and max length of comment. The method should take list of comments and next, if comment length > maxTextLength, it returns new comment that is a copy of original comment, but shorter (with maxTextLength amount of characters), and if comment length < maxTextLength, it just returns the same comment (or it can be also a copy with the same amount of characters).
Update: Example is below – we have (enter it) limit of 30 characters per string and method cuts all characters in each comment if there are more (>) than 30 characters.
Sample Input:
30
What a nice view! Where is it ?
I do not know, I just found it on the internet!
Perfect!
Sample Output:
What a nice view! Where is it
I do not know, I just found it
Perfect!
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Answer
You never showed the comment class. Can we set the text on a comment? Can we create a new one giving the text on the constructor? I am assuming the latter.
Then replace *what should be here?*
with
new Comment(comment.getText().substring(0, maxTextLength-3) + "...")