How to Print a Java 2D Array Efficiently

Printing a 2D array in Java can be achieved using various techniques. However, finding the most efficient and performant approach is crucial for larger arrays.

One common method is the nested loop technique, illustrated in the provided code. However, a more concise and efficient solution utilizing the Arrays.deepToString() method is recommended.

int[][] array = new int[rows][columns];
System.out.println(Arrays.deepToString(array));

This single line of code essentially prints a multidimensional array in a readable format. It recursively converts complex arrays (such as 2D arrays) into strings, allowing for convenient printing.

In contrast, the nested loop technique requires multiple lines of code and manual iteration through the array elements. The Arrays.deepToString() method handles the conversion process internally, providing a more efficient and streamlined approach.