Transpose a matrix in Java

A transpose of a matrix is the matrix flipped over its diagonal i.e. the row and column indices of the matrix are switched. An example of this is given as follows −

Matrix = 
1 2 3
4 5 6
7 8 9
Transpose = 
1 4 7
2 5 8
3 6 9

A program that demonstrates this is given as follows.

Example

 Live Demo

public class Example {
   public static void main(String args[]) {
      int i, j;
      int row = 3;
      int col = 2;
      int arr[][] = {{2, 5}, {1, 8}, {6, 9} };
      System.out.println("The original matrix is: ");
      for(i = 0; i < row; i++) {
         for(j = 0; j < col; j++) {
            System.out.print(arr[i][j] + " ");
         }
         System.out.print("
");
      }
      System.out.println("The matrix transpose is: ");
      for(i = 0; i < col; i++) {
         for(j = 0; j < row; j++) {
            System.out.print(arr[j][i] + " ");
         }
         System.out.print("
");
      }
   }
}

Output

The original matrix is:
2 5
1 8
6 9
The matrix transpose is:
2 1 6
5 8 9