How to Print Arrays in Java: Complete Guide

注意以下要点在打印Java数组时：

1. You can use the Arrays.toString() method to print an array, which will convert the array directly into a string for output.
2. When dealing with multi-dimensional arrays, the Arrays.deepToString() method is necessary to print them.
3. If the elements of the array are custom objects, it is necessary to override the toString() method of the objects in order to print the objects in the array correctly.
4. Avoid using the System.out.println() method directly to print arrays, as it will output the memory address of the array instead of the element values.
5. One option to print out each element of an array is to use a loop to iterate through the array, but this method is not suitable for multi-dimensional arrays.

In conclusion, choose the appropriate method when printing an array and ensure that the information printed is readable and useful.