Java Multiple Input in a Single row

Question

Enter any number of integer values in a single row separated by space and the calculate and print the sum to next line.

EX: input: 1 2 3 4 output: 10

`System.out.println(Stream.of("1 2 3 4".split("\\s+")).mapToInt(Integer::parseInt).sum());` — Elliott Frisch, Jul 09 '16 at 04:43

score 3 · Answer 1 · answered Jul 09 '16 at 04:44

3

This should work - console.hasNext uses whitespace as its delimiter.

Scanner console = new Scanner(System.in);
int sum = 0;
while (console.hasNext()) {
    sum += console.nextInt();
}
System.out.print(sum);

answered Jul 09 '16 at 04:44

Michael

776
4
19

score 0 · Accepted Answer · edited May 23 '17 at 11:51

0

You can read the whole line as a String and than split it into a String array and than you can add it one by one for this purpose as following:

BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
    String s[] = br.readLine().split(" ");
    int sum=0;
    for(int i=0;i<s.length;i++){
        sum+=Integer.parseInt(s[i]);
    }
    System.out.println(sum);

for this you have to import :

import java.io.BufferedReader;
import java.io.InputStreamReader;

This is faster than Scanner, see this question for more details about Scanner and BufferedReader.

edited May 23 '17 at 11:51

Community

1
1

answered Jul 09 '16 at 05:40

Kaushal28

5,377
5
41
72

Please avoid answering bad questions. – Nic Jul 09 '16 at 16:42
Thanks for the help The worked properly i got the solution. thanks a lot. :) – λττιτυδε ρπιηζε Jul 13 '16 at 12:05
I tried to do it with scanner but don't work. Here is the code: import java.util.*; class Multi { public static void main(String args[])Throws IOException { Scanner sc=new Scanner(System.in); String s[] = sc.next().split(" "); int sum=0; for(int i=0;i – λττιτυδε ρπιηζε Jul 13 '16 at 12:12
and post your above code in question by editing it. I will try to debug :) @λττιτυδερπιηζε – Kaushal28 Jul 13 '16 at 13:19

Java Multiple Input in a Single row

2 Answers2