Create Matrix Reverse.java

Matrix/Matrix Reverse.java

@@ -0,0 +1,97 @@
+import java.io.*;
+import java.util.*;
+class MatRev
+{
+    private int arr[][];
+    private int m;
+    private int n;
+    public MatRev(int mm, int nn) 
+    {
+        m=mm;
+        n = nn;
+        arr=new int[m][n];
+    }
+
+    public void fillArray( )throws IOException
+    {
+        Scanner sc = new Scanner(System.in);
+        System.out.println("Enter matrix elements::");
+        for(int i = 0; i < m; i++)
+        {
+            for(int j = 0; j < n; j++)
+            {
+                arr[i][j] = sc.nextInt();
+            }
+        }
+    }
+
+    public int reverse(int x) 
+    {
+        int rev = 0;
+        for(int i = x; i != 0; i /= 10)
+            rev = rev * 10 + i % 10;
+        return rev;
+    }
+
+    public void revMat(MatRev p) 
+    {
+        for(int i = 0; i < m; i++) 
+        {
+            for(int j = 0; j < n; j++)
+            {
+                this.arr[i] [j] = reverse(p.arr[i] [j]);
+            }
+        }
+    }
+
+    public void show()
+    {
+        for(int i = 0; i < m; i++)
+        {
+            for(int j = 0; j < n; j++)
+            {
+                System.out. print(arr[i][j] + "\t");
+            }
+            System.out.println();
+        }
+    }
+
+    public static void main(String args[])throws IOException
+    {
+        Scanner sc = new Scanner(System.in);
+        System.out.print("Enter number of rows::");
+        int x = sc.nextInt();
+        System.out.print("Enter number of columns::");
+        int y = sc.nextInt();
+        MatRev obj1 = new MatRev(x, y);
+        MatRev obj2 = new MatRev(x, y);
+        obj1.fillArray();
+        obj2.revMat(obj1);
+        System.out.println("Original Matrix is::");
+        obj1.show();
+        System.out.println("Matrix with reversed elements");
+        obj2.show();
+    }
+}
+/* OUTPUT
+ Enter number of rows::3
+Enter number of columns::3
+Enter matrix elements::
+2
+3
+4
+10
+12
+23
+43
+25
+21
+Original Matrix is::
+2    3    4    
+10    12    23    
+43    25    21    
+Matrix with reversed elements
+2    3    4    
+1    21    32    
+34    52    12
+*/