for循环在响应之前运行了两次

Question

在我输入下一个输入以将字符串添加到数组中，for循环输出连续两次之前，

input keyword 1:
input keyword 2:

这发生在我回应之前，

import java.util.Scanner;

public class Assignment1 {

    public static void main(String[] args) {
        String kwArray[];
        int numKw = 0;
        Scanner input = new Scanner(System.in);
        System.out.println("How many keywords do you want?");
        numKw = input.nextInt();
        kwArray = new String[numKw];
        System.out.print(System.lineSeparator());
        for (int i = 0; i < numKw; i++) {
            System.out.println("Enter keyword " + (i + 1) + ": ");
            kwArray[i] = input.nextLine(); // Read another string
        }

        input.close();

    }
}