Print 2D list java

This post will discuss how to print a two-dimensional array in Java.

In the previous post, we have discussed how to declare and initialize two-dimensional arrays in Java. This post will discuss how to print them.

1. Using Arrays.toString[] method

We know that a two-dimensional array in Java is a single-dimensional array having another single-dimensional array as its elements. We can use the Arrays.toString[] method to print string representation of each single-dimensional array in the given two-dimensional array.

DownloadRun Code

Output:

[1, 2, 3]
[4, 5, 6, 7]
null
[8, 9]

The above code uses a simple for-loop to print the array. We can also use a for-each loop to print the array effectively, as shown below:

2. Using Inner for-loop

A naive solution would use two loops the outer loop for the first dimension and the inner loop for the second dimension of the two-dimensional array.