1 public class ArraysAdd {
 2     public static void main(String[] args) {
 3         int[] i = {1,2,3};
 4         int[] j = {4,5};
 5         Object[] o = new Object[i.length+j.length];
 6         for (int k = 0; k < i.length; k++) {
 7             o[k] = i[k];
 8         }
 9         for (int k = 0; k < j.length; k++) {
10             //数组的长度等于数组下表+1
11             o[i.length + k] = j[k];
12         }
13         for (int k = 0; k < o.length; k++) {
14             //输出o数组
15             System.out.println(o[k]);
16         }
17     }
18 }