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In this post, we will see how to find transpose of matrix in java.
Transpose of matrix?
A matrix which is created by converting all the rows of a given matrix into columns and vice-versa.
Below image shows example of matrix transpose.
So as you can see we have converted rows to columns and vice versa.
Java program to find transpose of matrix:
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package org.arpit.java2blog; /** @author Arpit Mandliya */ public class TransposeMatrixMain { public static void main(String args[]) { // initialize the variable int[][] a = { { 1, 2, 3 }, { 4, 5, 6 }, { 7, 8, 9 },{10, 11, 12} }; // This will store resultant transpose matrix int[][] transposeMtrx=new int[a[0].length][a.length]; // print the original matrix System.out.println("Original matrix:"); for (int i = 0; i < 4; i++) { for (int j = 0; j < 3; j++) { System.out.print(" "+a[i][j]); } System.out.println(); } // Performing transpose operation for (int i = 0; i < 4; i++) { for (int j = 0; j < 3; j++) { transposeMtrx[j][i] = a[i][j]; } } System.out.println("======================"); System.out.println("Transpose matrix:"); // print transpose matrix for (int i = 0; i < 3; i++) { for (int j = 0; j < 4; j++) { System.out.print(" "+transposeMtrx[i][j]); } System.out.println(); } } } |
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Original matrix: 1 2 3 4 5 6 7 8 9 10 11 12 ====================== Transpose matrix: 1 4 7 10 2 5 8 11 3 6 9 12 |
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