### Java program to Transpose a matrix :

In this tutorial, we will learn how to print the transpose of a matrix in Java. But first let me show you want is transpose of a Matrix :

### What is Transpose of a Matrix :

Transpose of a matrix is a matrix whose rows are columns of the original one . That means, columns are rows of the original matrix.

For example :

```
1 2 3
4 5 6
7 8 9
```

The transpose of this above matrix is :

```
1 4 7
2 5 8
3 6 9
```

### Java program to print the transpose of a Matrix :

- First we will take the inputs of the matrix using two ‘for’ loops
- We will scan the matrix using two ‘for’ loops and print it out as column wise i.e. first column as first row, second column as second row etc.

```
import java.util.Scanner;
public class Main {
/**
* Utility functions for System.out.println() and System.out.print()
*/
private static void print(String str) {
System.out.print(str);
}
private static void println(String str) {
System.out.println(str);
}
/**
* Print one matrix in normal order
*
* @param matrix : Matrix to print
* @param row : total row count
* @param column : total column count
*/
private static void printMatrix(int[][] matrix, int row, int column) {
for (int i = 0; i < row; i++) {
for (int j = 0; j < column; j++) {
print(matrix[i][j] + " ");
}
println("");
}
}
/**
* Print Transpose matrix
*
* @param matrix : Matrix to print
* @param row : total row count
* @param column : total column count
*/
private static void printTransposeMatrix(int[][] matrix, int row, int column) {
for (int i = 0; i < column; i++) {
for (int j = 0; j < row; j++) {
print(matrix[j][i] + " ");
}
println("");
}
}
public static void main(String args[]) {
int i, j;
Scanner scanner = new Scanner(System.in);
println("Enter total number of rows of the matrix : ");
int row = scanner.nextInt();
println("Enter total number of columns of the matrix : ");
int column = scanner.nextInt();
int matrix[][] = new int[row][column];
println("Enter the matrix elements one by one : ");
//get the matrix input from the user
for (i = 0; i < row; i++) {
for (j = 0; j < column; j++) {
matrix[i][j] = scanner.nextInt();
}
}
//print the matrix
println("Matrix you have entered : ");
printMatrix(matrix, row, column);
//print the matrix as transpose
println("Transpose matrix of the above is : ");
printTransposeMatrix(matrix, row, column);
}
}
```

### Sample output :

```
Enter total number of rows of the matrix :
3
Enter total number of columns of the matrix :
3
Enter the matrix elements one by one :
1
4
6
7
9
10
11
14
15
Matrix you have entered :
1 4 6
7 9 10
11 14 15
Transpose matrix of the above is :
1 7 11
4 9 14
6 10 15
```

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