How to store a string input into different variables?

Question

In my program I want to take an input from the user in the format of "String Int Int". For example, "F 5 200".

I then want to store these values into three different variables. How would I go about doing this?

import java.util.Scanner;

public class Test {

 public static void main(String args[])
   {
      String s;

      Scanner in = new Scanner(System.in);

      System.out.println("Enter a command");
      s = in.nextLine();

      String str = s; 
        String[] arrOfStr = str.split(" ", 3); 

        for (String a : arrOfStr) 
            System.out.println(a); 



   }

}

I've got to the point of splitting the string and outputting the result. However I'm not sure how to store the outputs into variables with the correct data type.

Mouad Khali · Accepted Answer · 2019-01-20 14:17:52Z

1

They are all String variables so you realy have to know the order of the data so you can parse the string into int type

   String[] arrOfStr = str.split(" ", 3);
 String str1 =  arrOfStr[0];
 int int2 = Integer.parseInt (arrOfStr[1]);
 int int3 =  Integer.parseInt (arrOfStr [2]);

edited Jan 20, 2019 at 14:17

answered Jan 20, 2019 at 13:07

Mouad Khali

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2 Comments

Ralf Kleberhoff Over a year ago

You can't assign a String to a char variable, as your code does with str1. So I had to downvote that. Please correct that, and I'll happily upvote.

Mouad Khali Over a year ago

Yes my bad i missed that

Kannappan Sirchabesan · Accepted Answer · 2019-01-20 14:24:00Z

1

The three values are available in the array arrOfStr. So you could have three variables and assign each of them to arrOfStr[0], arrOfStr[1] and arrOfStr[2].

so the code snippet could look like the below in this case

String[] arrOfStr = str.split(" ", 3); 
String c = arrOfStr[0];
int val1 = Integer.parseInt(arrOfStr[1]);
int val2 = Integer.parseInt(arrOfStr[2]);

edited Jan 20, 2019 at 14:24

answered Jan 20, 2019 at 13:00

Kannappan Sirchabesan

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2 Comments

Ralf Kleberhoff Over a year ago

You can't assign a String to an int variable, as your code does with val1 and val2. So I had to downvote that. Please correct that, and I'll happily upvote.

Ralf Kleberhoff Over a year ago

Still using char instead of String for c (what I missed when reading first).

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