//Sample23_02.java
class Sample23_02{

  public static void main(String[] args){

      int[][] arrays = new int[3][2];

      System.out.println("arrays.length = " + arrays.length);

      System.out.println("arrays[0].length = " + arrays[0].length);
      arrays[0][0] = 0;
      arrays[0][1] = 1;

      System.out.println("arrays[1].length = " + arrays[1].length);
      arrays[1][0] = 10;
      arrays[1][1] = 11;

      System.out.println("arrays[2].length = " + arrays[2].length);
      arrays[2][0] = 20;
      arrays[2][1] = 21;

      System.out.println();
      System.out.println("arrays[0][0] = " + arrays[0][0]);
      System.out.println("arrays[0][1] = " + arrays[0][1]);
      System.out.println("arrays[1][0] = " + arrays[1][0]);
      System.out.println("arrays[1][1] = " + arrays[1][1]);
      System.out.println("arrays[2][0] = " + arrays[2][0]);
      System.out.println("arrays[2][1] = " + arrays[2][1]);


      System.out.println();

      arrays[0] = new int[3];
      System.out.println("arrays[0].length = " + arrays[0].length);
      arrays[0][0] = 520;
      arrays[0][1] = 521;
      arrays[0][2] = 522;

      System.out.println();
      System.out.println("arrays[0][0] = " + arrays[0][0]);
      System.out.println("arrays[0][1] = " + arrays[0][1]);
      System.out.println("arrays[0][2] = " + arrays[0][2]);
    }
}