Taking a user's input string and splitting it in Java

Question

I want to take the input from a user, in this case, their full name and split it with the .split(" ") command into 2 or 3 sections, depending on number of names, and then print out the results on different lines:

For example,

User inputs:

"John Doe Smith"

Program returns:

John

Doe

Smith

Currently, my code looks like this:

import java.util.Scanner;
public class Task2 {
    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        String name;
        System.out.println("Enter your full name: ");
        name = input.next();
        String[] parts = name.split(" ");
        System.out.println(java.util.Arrays.toString(parts));

    }
}

This currently only returns the first part of the name.

The program should also be able to deal with someone not having a middle name.

Thank you very much! How can I print this to different lines? — Nawlidge, Sep 30 '17 at 17:12
Loop over the `parts` array `for(String part : parts ){ System.out.println(part); }` — Mustapha Belmokhtar, Sep 30 '17 at 17:14

score 5 · Accepted Answer · answered Sep 30 '17 at 17:21

5

input.next() returns only the first string before the first encountered blank space, try input.nextLine()

answered Sep 30 '17 at 17:21

Mustapha Belmokhtar

1,231
8
21

score 1 · Answer 2 · edited Oct 11 '17 at 05:31

import java.util.Scanner;

public class Task2 {
    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        String name;
        System.out.println("Enter your full name: ");
        while (input.hasNext()) {
            name = input.next();
            String[] parts = name.split(" ");
            System.out.println(java.util.Arrays.toString(parts));
        }
    }
}

score 0 · Answer 3 · answered Sep 30 '17 at 17:17

0

Check out the JavaDoc of Scanner, the next() method returns the next token of your input stream. Not the entire line.

answered Sep 30 '17 at 17:17

M. le Rutte

3,525
3
18
31

2

This describes the problem, not the solution – OneCricketeer Sep 30 '17 at 17:18

loadP · Answer 4 · 2017-09-30T18:33:48.503

0

This would also work, maybe.

Executed as e.g. java -jar SplitTest.jar Something Null

public class SplitTest {
 public static void main(String[] args) {
  String name = "";
  for (String arg : args) {
   name = arg;
   System.out.println(name);
  }
 }
}

edited Sep 30 '17 at 18:33

answered Sep 30 '17 at 18:27

loadP

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15

Taking a user's input string and splitting it in Java

4 Answers4