\n doesnt works

[Angus Ferguson]

Hi,

I am trying to use "\n" line but it doesnt works. Any idea, please?

 ex = "Over " + requestsInFile + "users the time  per request is over " +"\n"+ loadRequestTime +
"please to maintain the system \n according to the "+"\n"+"desired performance values, please add 256 mb";

[Stephan van Hulst]

ItDoesntWorkIsUseless. TellTheDetails.

[Angus Ferguson]

It doesnt split the line in too. The behaviour of the app is totally normal and no errors are shown. It just doesnt change anything and also it is not shown when the app is run

[Jesper de Jong]

How are you displaying the string? In the Windows console or a shell window, or a Swing or JavaFX GUI, on an HTML page or somewhere else?

That matters a lot for your question.

[Stephan van Hulst]

An example of what Jesper is talking about: HTML ignores newlines.

[Angus Ferguson]

Inside a Servlet I suppose that when it is like this it cant read the special caracters

public class ServletConector {

    public String conector(String file_name, int requestNumber, int loadRequestTime) throws IOException {

        file_name = "/Users/isaac/Documents/filesRawDataTests/test-resultSidney.csv";

        ReadFile file = new ReadFile(file_name);
        LoadStressAnalyzerReader analyzerReader = new LoadStressAnalyzerReader();
        String s = "";

       
        String ex = "iiiii";
        int requestsInFile = 0;
        ServletConector test = new ServletConector();
        for (String singleLine : file.readLines(file_name)) {

            String extracted = analyzerReader.extractText(singleLine);
            if (extracted == null) {
                System.out.println("Error: couldnt extract time taken for line :\n" + singleLine + "\n\n\n");
            } else {
                if ((requestsInFile == requestNumber) && (loadRequestTime <= Integer.parseInt(extracted))) {

                    ex = "Over " + requestsInFile + "users the time  per request is over " +"\n"+ loadRequestTime +
"please to maintain the system \n according to the "+"\n"+"desired performance values, please add 256 mb";

                }
                    
                System.out.println(extracted);
            }
            requestsInFile = requestsInFile + 1;
        }
        ex = ex+ requestsInFile;
        return ex;
    }

[Tim Holloway]

How do you define "split the line in two"? All you've done is create a String in your sample code. You're not doing anything that would show whether or not "\n" "worked". Control characters do different things in different environments.

[Angus Ferguson]

I am trying to make a break line for formatting purposes

[Stephan van Hulst]

What we're trying to tell you is that you need to tell us what you're using to view the String. You still haven't told us whether you're outputting it to a terminal, displaying it on an HTML page, using it in a Swing GUI or other.

[Angus Ferguson]

Chrome browser

[Stephan van Hulst]

Assuming you mean as an HTML page, and not a text file or something...

This is not an issue with Java. HTML doesn't use newlines to break inline content. You need to use paragraphs (<p>) or line beaks (<br>).

[Bear Bibeault]

If this line is ending up in HTML, it has already been stated that HTML ignores whitespace including new lines. TO format HTML you need to use HTML and CSS, not special characters that HTML ignores.

I've moved this to the Servlets forum where it should have been originally posted.

[Angus Ferguson]

Now it works

ex = "Over " + requestsInFile + " users the time per request is over " + loadRequestTime + "<p></p>"+"

Thanks

[Stephan van Hulst]

You're grasping at straws. Please take your time to learn HTML.

[Bear Bibeault]

That's a horrible way to do it! Bear is sad.

Figure out how to use HTML to do what you want, and then, and only then, generate that text.

P.S. Why generating markup in a servlet rather that forwarding to a JSP to create the view?

[Angus Ferguson]

I need to do it in the Servlet instead that in the jsp, which would be no confusing. More than learn HTML I think I need to sort out how to do it from the Servlet in the rigth way for this specific case, thats the point.

[Bear Bibeault]

It's not clear what you are doing from the servlet. But regardless, you should be creating HTML that's well-formed and conventional. Using an empty P tag to emulate a new line is not conventional or good practice.

Think of how you might add this text to the HTML if you were hardcoding it into the page. How would you format the HTML?

[Ron McLeod]

Bear Bibeault wrote:That's a horrible way to do it! Bear is sad.

I want that on a tee shirt

[Charles D. Ward]

Isaac Ferguson wrote:Now it works

ex = "Over " + requestsInFile + " users the time per request is over " + loadRequestTime + "<p></p>"+"

Thanks

Wow that's a terrible "solution".