Java Scanner输入两个数组的方法

import java.util.Scanner;public class Z { public static void main(String[] args) {  Scanner scanner = new Scanner(System.in);  int na = scanner.nextInt();  int nb = scanner.nextInt();  int[] aa = new int[na];  int[] bb = new int[nb];  int i = 0;  while (scanner.hasNext()) {   aa[i++] = scanner.nextInt();   if (i == aa.length) {    break;   }  }  i = 0;  while (scanner.hasNext()) {   bb[i++] = scanner.nextInt();   if (i == bb.length) {    break;   }  }  for (int j = 0; j < aa.length; j++) {   System.out.print(aa[j] + " ");  }  System.out.println();  for (int j = 0; j < bb.length; j++) {   System.out.print(bb[j] + " ");  } }}

输入：3 41 2 31 2 3 4输出：1 2 3 1 2 3 4