Apr 9, 2019 · for (int j = 0; j <arr1.length; j++) { . System.out.print(arr1[i][j] + " "); . System.out.println(); . for (int k = 0; k < arr1.length; k++) { System.out.println( arr1[k][k]); You have added two rows to your array, add the third one the same way. …

Feb 10, 2015 · // elements to the right of secondary diagonal elements. while(j<columns){ k = i; l = j; //System.out.print("2 loop"); //System.out.println(" "+k+""+l); while(l<columns){ …

If you want to add both diagonal in a 2d array then here is a solution: int j = row_col_size-1; for (int i = 0; i < intArray.length; i++) { sum_left += intArray[i][i]; sum_right += intArray[i][j]; j--; }

Oct 9, 2023 · Print the list of secondary diagonal elements using the join() method to convert the list to a string separated by commas. Example usage: Create a 2D list matrix, call the print_diagonals function with matrix as input.

Nov 19, 2018 · if(i!=j && A[i][j]!=0) // Checking non-diagonal elements. p=1; break; if(i==j && A[i][j]==0) // Checking diagonal elements. q++; if(p==0 && q<m) System.out.println("The matrix is Diagonal"); else. System.out.println("The matrix is not Diagonal"); Output: Loading...

To create a diagonal array in Java, we will initialize a 2D array and populate only its diagonal elements. Let's see how to achieve this with a sample code snippet.

Aug 23, 2024 · In this tutorial, we will see how to loop diagonally through a two-dimensional array. The solution that we provide can be used for a square two-dimensional array of any size. 2. Two-Dimensional Array. The key in working with elements of an array is knowing how to get a specific element from that array.

Mar 24, 2025 · In this article we cover different methods to print 2D Array. When we print each element of the 2D array we have to iterate each element so the minimum time complexity is O( N *M ) where N is the number of rows in the matrix and M is the number of columns in the matrix.

Jan 24, 2018 · Easiest way to check it, just print it out to console. I can see, that you have problem with for (int row = 0; row < numSpots - 1; row++). Firs iteration, when numSpots=1 it skips this loop. Correct is for (int row = 0; row <= numSpots - 1; row++). Let me give you some notes about your example.

Oct 11, 2012 · In this section, we will understand how to print a matrix in a diagonal order. Also, create a Java program that prints the matrix in a diagonal order. First, we will understand the diagonal printing order. Consider the following matrix having 4 rows and 5 columns.