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I was wondering what the best way of printing a 2D array was. This is some code that I have and I was just wondering if this is good practice or not. Also correct me in any other mistakes I made in this code if you find any. Thanks!
int rows = 5; int columns = 3; int[][] array = new int[rows][columns]; for(int i = 0; i<rows; i++) for(int j = 0; j<columns; j++) array[i][j] = 0; for(int i = 0; i<rows; i++) { for(int j = 0; j<columns; j++) { System.out.print(array[i][j]); } System.out.println(); } 
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Java provides multiple ways to print a 2d array, for example nested for-loop, for-each loop, Arrays. deepToString() method, etc.
public class Print2DArray { public static void main(String[] args) { final int[][] matrix = { { 1, 2, 3 }, { 4, 5, 6 }, { 7, 8, 9 } }; for (int i = 0; i < matrix. length; i++) { //this equals to the row in our matrix. for (int j = 0; j < matrix[i].
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.
You can print in simple way.
Use below to print 2D array
int[][] array = new int[rows][columns]; System.out.println(Arrays.deepToString(array)); Use below to print 1D array
int[] array = new int[size]; System.out.println(Arrays.toString(array)); If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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