How to read comma separated integer inputs in java

Question

import java.io.*;
import java.util.*;
class usingDelimiters
{
    public static void main(String args[])
    {
        Scanner dis=new Scanner(System.in);
        in         


        

Answer 1

You can use a delimiter for non-numerical items, which will mark any non-digit as delimiter.

Such as:

dis.useDelimiter("\\D");

The useDelimiter method takes a Pattern or the String representation of a Pattern.

Full example:

Scanner dis=new Scanner(System.in);
dis.useDelimiter("\\D");
int a,b,c;
a=dis.nextInt();
b=dis.nextInt();
c=dis.nextInt();
System.out.println(a + " " + b + " " + c);
dis.close();

Inputs (either or)

• 1,2,3
• 1 2 3

Output

1 2 3

Note

• Don't forget to close your Scanner!
• See the API for Patterns for additional fun delimiting your input.