int a[][] = new int[2][5]

解析：以上二維陣列a 可以看成一個兩行五列的陣列

 1 package com.xl.array;
 2 
 3 public class ArrayDemo05 {
 4     public static void main(String[] args) {
 5         //[4][2]
 6         /*
 7         1,2    array[0]
 8         2,3    array[1]
 
 9         3,4    array[2]
10         4,5    array[3]
11          */
12         int [] [] ayyay ={{1,2},{2,3},{3,4},{4,5}};
13         System.out.println(ayyay[0]);
14 //        printArray(ayyay[0]);
15 //        System.out.println(ayyay[0][0]);
16 //        System.out.println(ayyay[0][1]);
17 //        System.out.println(ayyay[2][1]);
 
18 //        System.out.println(ayyay[3][1]);
19         for (int i = 0; i < ayyay.length; i++) {
20             for (int j = 0; j < ayyay[i].length; j++) {
21                 System.out.println(ayyay[i][j]);
22 
23             }
24 
25         }
26 
27     }
28 
29     //列印陣列元素
30     public static void
 
 printArray(int[] arrays){
31         for (int i = 0; i < arrays.length; i++) {
32             System.out.print(arrays[i]+" ");
33 
34