﻿ Java - Change the rows and columns of a 2-dimension array

# Java: Print an array after changing the rows and columns of a specified two-dimensional array

## Java Basic: Exercise-155 with Solution

Write a Java program to print an array after changing the rows and columns of a two-dimensional array.

Original Array:
10 20 30
40 50 60
After changing the rows and columns of the said array:10 40
20 50
30 60

Visual Presentation:

Sample Solution:

Java Code:

import java.util.Scanner;

public class Solution {
public static void main(String[] args) {
// Initializing a 2D array with values
int[][] twodm = {
{10, 20, 30},
{40, 50, 60}
};

// Displaying the original array
System.out.print("Original Array:\n");
print_array(twodm);

// Performing transpose operation on the array
System.out.print("After changing the rows and columns of the said array:");
transpose(twodm);
}

// Method to transpose the given 2D array
private static void transpose(int[][] twodm) {
// Creating a new 2D array to store the transposed elements
int[][] newtwodm = new int[twodm[0].length][twodm.length];

// Transposing the elements of the array
for (int i = 0; i < twodm.length; i++) {
for (int j = 0; j < twodm[0].length; j++) {
newtwodm[j][i] = twodm[i][j];
}
}

// Printing the transposed array
print_array(newtwodm);
}

// Method to print the elements of a 2D array
private static void print_array(int[][] twodm) {
// Looping through the array and printing its elements
for (int i = 0; i < twodm.length; i++) {
for (int j = 0; j < twodm[0].length; j++) {
System.out.print(twodm[i][j] + " ");
}
System.out.println();
}
}
}

Sample Output:

Original Array:
10 20 30
40 50 60
After changing the rows and columns of the said array:10 40
20 50
30 60

Flowchart:

Java Code Editor: