Matrix Transpose program in java


Hi! we will learn how to transpose a matrix in java.





Main logic behind matrix transpose is:
          //transpose matrix
          int transpose[][] = new int[columns][rows];
          for (int i = 0; i < rows; i++) {
                 for (int j = 0; j < columns; j++)
                       transpose[j][i] = matrix[i][j];
          }


Example/ Full Program/SourceCode to do Matrix Transpose in java >
package matrix;
import java.util.Scanner;
/** Copyright (c), AnkitMittal  JavaMadeSoEasy.com - Matrix Transpose in java */
public class TransposeMatrix {
   public static void main(String...args) {
          Scanner scanner = new Scanner(System.in);
          System.out.println("Enter number of rows in matrix : ");
          int rows = scanner.nextInt();
          System.out.print("Enter number of columns in matrix : ");
          int columns = scanner.nextInt();
          int matrix[][] = new int[rows][columns];
          System.out.println("Enter the elements in matrix :");
          for (int i = 0; i < rows; i++) {
                 for (int j = 0; j < columns; j++) {
                       matrix[i][j] = scanner.nextInt();
                 }
          }
         
          //transpose matrix
          int transpose[][] = new int[columns][rows];
          for (int i = 0; i < rows; i++) {
                 for (int j = 0; j < columns; j++)
                       transpose[j][i] = matrix[i][j];
          }
          System.out.println("\nEntered Matrix is : ");
          for (int i = 0; i < rows; i++) {
                 for (int j = 0; j < columns; j++) {
                       System.out.print(matrix[i][j] + " ");
                 }
                 System.out.println();
          }
         
          System.out.println("\nTranspose of entered matrix is : ");
          for (int i = 0; i < columns; i++) {
                 for (int j = 0; j < rows; j++)
                       System.out.print(transpose[i][j] + " ");
                 System.out.println();
          }
   }
}
/*OUTPUT
Enter number of rows in matrix :
3
Enter number of columns in matrix : 2
Enter the elements in matrix :
1
2
3
4
5
6
Entered Matrix is :
1 2
3 4
5 6
Transpose of entered matrix is :
1 3 5
2 4 6
*/

So we learned program to do Matrix Transpose in java.

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