Mirror Image of Matrix in Java Trick 2024 | topperbhai.com

Mirror Image of Matrix in Java Trick 2024

 

In this tutorial, first we will learn to  write the mirror image of matrix algorithm  then we will  learn how to write a program to print mirror image of a matrix but  before writing the code  in java let's first understand what is the meaning of mirror image of a matrix.

 

Note:

Mirror image of matrix means you have to interchange the position of all the columns, meaning change the 1st columns to last column and vice versa, same is true for  other  columns

 

If you are  not able to understand the above definition,  then look at the example given below. 

Algorithm to Print Mirror Image of Matrix:-

Step 1: Input number of rows (r).

Step 2: Input number of columns (c).

Step 3: Input elements of the Matrix.

Step 4: Interchange the columns of the input matrix.

Step 5: Print the mirror image of the matrix. 

Below, In this post, I have  written a short and easy-to-understand java program which accepts elements of  a matrix from the user using scanner input and prints the  mirror image of the input matrix. 

 

The logic I have implemented in this program is pretty easy to understand.

 

First, I will ask the user to enter the number of rows and columns then, the  user will enter the elements of the matrix, and after  that, I will access the columns of the input matrix to mirror it using for loop  print it. 

 

Mirror Image of Matrix in Java

 import java.util.*;  
 class Mirror_Matrix  
 {  
 public static void main()  
 {  
   Scanner sc=new Scanner(System.in);  
   System.out.println("Enter the number of Rows");  
   int r=sc.nextInt();  
   System.out.println("Enter the number of Columnns");  
   int c=sc.nextInt();  
   int arr[][]=new int[r][c];  
   System.out.println("Enter the elements of Matrix");  
   for(int i=0;i<r;i++)  
   {  
     for(int j=0;j<c;j++)  
     {  
       arr[i][j]=sc.nextInt();  
     }  
   }  
   System.out.println("Input Matrix is:");  
   for(int i=0;i<r;i++)  
   {  
     for(int j=0;j<c;j++)  
     {  
    System.out.print(arr[i][j]+" ");  
   }  
   System.out.println(" ");  
 }  
   System.out.println("Mirror Matrix is:");  
    for(int i=0;i<r;i++)  
 {  
   for(int j=c-1;j>=0;j--)  
   {  
     System.out.print(arr[i][j]+" ");  
   }  
   System.out.println(" ");  
 }  
 }   
  }  
 ------------  
 OUTPUT:-  
 -----------  
 Enter the number of Rows  
 4  
 Enter the number of Columns  
 4  
 Enter the elements of Matrix  
 1  
 5  
 9  
 8  
 7  
 5  
 3  
 2  
 4  
 6  
 8  
 5  
 2  
 1  
 4  
 5  

 Input Matrix Is:  
 1 5 9 8   
 7 5 3 2   
 4 6 8 5   
 2 1 4 5
   
 Mirror Matrix is:  
 8 9 5 1   
 2 3 5 7   
 5 8 6 4   
 5 4 1 2