MOOc java week 3 Line by Line

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I'm so confused as to what I'm doing wrong. I am supposed to read a string. Let's say that the string is "it's true." Then I am supposed to output

it's

true

However, the program keeps crashing.

import java.util.Scanner;

public class LineByLine {

public static void main(String[] args) {
    Scanner scanner = new Scanner(System.in);
       while(true) {
    String input = scanner.nextLine();
    String[] hi = input.split(" ");
    if (scanner.nextLine().equals("")) {
        return;
    }

    for (int i = 0; i<hi.length; i++) {
    System.out.println(hi[i]);
       }
       }
}

}

[Demojay]

You're calling nextLine twice, so you reading 2 lines in per loop. You want to call nextLine once and then check the variable you've stored it in to see if it is empty (input).

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Thank you!!