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 4

1 2 3

1 2 3 4

输出：

1 2 3

1 2 3 4