trying to split Strings in Java that are scanned from user

Question

I'm building a project where I will take three inputs from the users: name,ID,GPA. the users should enter them in one line separated by a semicolumn";" and I want to be able to receive them as one line and be able to save them in three variables. I'm applying a method where I will take three variables from the user. for example : the user will enter the name,Id and GPA like this:

1;Sally;90.5;       //in one line separated by ";"

I want to be able to save each info from the user in different variable. Can someone tell me how will I be able to implement that?

Here is the method:

private static void addNewStudent() {
    System.out.println("enter ID;Name;Gpa; ");
    String info = scanner.nextLine();

Note: I'm trying the apply the CSV in my project.

Look at this https://stackoverflow.com/questions/3481828/how-to-split-a-string-in-java — z atef, May 18 '20 at 23:48
Does this answer your question? [How to split a string in Java](https://stackoverflow.com/questions/3481828/how-to-split-a-string-in-java) — Dean Coakley, May 18 '20 at 23:53

score 1 · Answer 1 · answered May 19 '20 at 00:00

1

You just need read one line and then split it into string array.The input order must be ID -> NAME -> GPA:

    private static void addNewStudent() {
        Scanner scanner = new Scanner(System.in);
        System.out.println("enter ID;Name;Gpa; ");
        String info = scanner.nextLine();
        if (info != null) {
            String[] infoArray = info.split(",");
            if (infoArray.length == 3) {
                String id = infoArray[0];
                String name = infoArray[1];
                String gpa = infoArray[2];
            }
        }
    }

answered May 19 '20 at 00:00

TongChen

1,414
1
11
21

This answers the question. But keep in mind @sally you probably do not want to store id or gpa as a string. :) – Dean Coakley May 19 '20 at 00:04
yes,id may store a string,but jpa may store as `double` – TongChen May 19 '20 at 00:07

score 0 · Answer 2 · answered May 18 '20 at 23:36

0

This should do to split the input by ";":

String[] input = GPA.split[";"];

Before trying to get the values, check if the input array has the expected size.

answered May 18 '20 at 23:36

papalulu

78
6

how will I be able to save them in different variables If I did this – sally May 18 '20 at 23:40
Input will be a String array. You access the values by: input[0] // first value input[1] // second value .... – papalulu May 18 '20 at 23:52

trying to split Strings in Java that are scanned from user

2 Answers2