Need to display output though return statement instead of system.out.print statement

Question

Below Code works fine. I get a list of elements printed . But I don't want to use System.out.println(element); instead I need return element; to print all data. How can I do this?

public String getelement() {

     final int size1 = Export.getdetails().getdata().getdata().size();

     for (int i = 0; i <= size1; i++) {
     final String element = Export.getdetails().getdata().getdata().get(i).getLongName();
     System.out.println(element);
     }

    return null;
}

score 1 · Answer 1 · answered Nov 30 '16 at 13:49

Put them in a list or Array and return.

    public List<String> getelement() {
        List<String> elementList = new ArrayList<>();
        final int size1 = Export.getdetails().getdata().getdata().size();
        for (int i = 0; i <= size1; i++) {
            final String element = Export.getdetails().getdata().getdata().get(i).getLongName();
            elementList.add(element);
        }
       return elementList;
   }

score 0 · Answer 2 · edited May 23 '17 at 11:53

You have to use Loggers if you want to do it a clean way. Use log4j >2.5 version to achieve what you are doing. Your code will become the following

private Logger log = Logger.getLogger(this.getClass());

public String getelement() {

     final int size1 = Export.getdetails().getdata().getdata().size();

     for (int i = 0; i <= size1; i++) {
     final String element = Export.getdetails().getdata().getdata().get(i).getLongName();
     System.out.println(element);
     }

    return log.traceExit(/*object that you are returning*/);
}

See the logger API here

See how you can configure logger to print into a console here https://stackoverflow.com/a/3383006/258741

Need to display output though return statement instead of system.out.print statement

2 Answers2