I'm doing old codeforces problems for practice, and a pattern I repeat often in Python is:
(m, n, k) = [int(i) for i in raw_input().split()]
to quickly assign m, n, k because inputs such as
4 2 7
are common in codeforces as a first input line. Is there any way I can do this kind of thing (with multiple variables m, n, k) quickly in Java (preferably 1-2 liner)?
Any help appreciated (or link to somewhere that answers the q). Thanks!
The quickest way I can think of is like so:
System.out.println("Enter values:");
Scanner scan = new Scanner(System.in);
int i = scan.nextInt();
int j = scan.nextInt();
int k = scan.nextInt();
System.out.print(i + " " + j + " " + k);
Input: 1 2 3
Output: 1 2 3
This may not be exactly what you're wanting, IMO, it's a close substitute if you store the input in an array. You don't have three "separate" variables per say, but a 1 - 2 liner as you're requesting.
public static void main(String[] args) throws Exception {
Scanner input = new Scanner(System.in);
System.out.print("Enter 3 values separated by spaces: ");
int[] mnk = Arrays.stream(input.nextLine().split(" "))
.mapToInt(a -> Integer.parseInt(a)).toArray();
System.out.println(Arrays.toString(mnk));
}
The other "downside" to a method like this, is that the input is SO restrictive to integers being entered and separated by spaces. There is no way you're going to get a 1 - 2 liner with error checking.
Results:
Enter 3 values separated by spaces: 4 2 7
[4, 2, 7]
