Square Matrix - Corner Elements Sum In Java

Here is the Java Program of sum of corner elements in matrix in Java

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 import java.util.*;  
 class Sum_of_Corner_Elements  
 {  
   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 Columns");  
     int c=sc.nextInt();  
     int arr[][]=new int[r][c];  
     int sum=0;  
     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("");       
     }  
      sum=arr[0][0]+arr[0][r-1]+arr[r-1][0]+arr[r-1][r-1];  
      System.out.println("Sum of Corner Elements is="+sum);  
   }  
 }  
 ------------  
 OUTPUT:-  
 ------------  
 Enter the number of Rows  
 4  
 Enter the number of Columns  
 4  
 Enter the elements of Matrix  
 1  
 5  
 2  
 3  
 6  
 5  
 4  
 7  
 8  
 93  
 2  
 5  
 4  
 1  
 5  
 6  
 Input Matrix Is:  
 1 5 2 3   
 6 5 4 7   
 8 93 2 5   
 4 1 5 6   
 Sum of Corner Elements of Matrix is = 14  
 ----------------------------------------

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