How to read multiple integer values from one line in Java using BufferedReader object?

Question

I am using BufferedReader class to read inputs in my Java program. I want to read inputs from a user who can enter multiple integer data in single line with space. I want to rea

Answer 1

Integer.parseInt(br.readLine()) -> Reads a whole line and then converts it to Integers.

scanner.nextInt() -> Reads every single token one by one within a single line then tries to convert it to integer.

String[] in = br.readLine().trim().split("\\s+"); 
// above code reads the whole line, trims the extra spaces 
// before or after each element until one space left, 
// splits each token according to the space and store each token as an element of the string array.


for(int i = 0; i < n; i++)
    arr[i] = Integer.parseInt(in[i]);

// Converts each element in the string array as an integer and stores it in an integer array.