Question

Write a program that creates a two-dimensional array initialized with test data. Use any primitive data type that you wish. The program should have the following methods:

-getTotal. This method should accept a two-dimensional array as its argument and return the total of all the values in the array.

-getAverage. This method should accept a two-dimensional array as its argument and return the average of all the values in the array.

-getRowTotal. This method should accept a two-dimensional array as its first argument and an integer as its second argument. The second argument should be the subscript of a row in the array. The method should return the total of the values in the specified row.

-getColumnTotal. This method should accept a two-dimensional array as its first argument and an integer as its second argument. The second argument should be the subscript of a column in the array. The method should return the total of the values in the specified column.

-getHighestInRow. This method should accept a two-dimensional array as its first argument and an integer as its second argument. The second argument should be the subscript of a row in the array. The method should return the highest value in the specified row of the array.

-getLowestInRow. This method should accept a two-dimensional array as its first argument and an integer as its second argument. The second argument should be the subscript of a row in the array. The method should return the lowest value in the specified row of the array. Demonstrate each of the methods in this program.

Answer 1

C++ CODE:

#include<iostream>

using namespace std;

int getTotal(int arr[3][4])
{  
   int total=0,i,j;  
  
   for(i=0;i<3;i++)
   {
       for(j=0;j<4;j++)
       {
           total+=arr[i][j];
       }
      
   }  
   return total;      
}

double getAverage(int arr[3][4])
{
   double average=0;
   int total=0,i,j;
  
   for(i=0;i<3;i++)
   {
       for(j=0;j<4;j++)
       {
           total+=arr[i][j];
       }
      
   }  
   average=total/(3.0 * 4);  
   return average;  
}

int getRowTotal(int arr[3][4],int r)
{
  
   int total=0,i,j;  
  
   for(i=0;i<3;i++)
   {
       for(j=0;j<4;j++)
       {
           if (i==r)
               total+=arr[i][j];
       }
      
   }  
   return total;  
  
}
int getColumnTotal(int arr[3][4],int c)
{
  
   int total=0,i,j;  
  
   for(i=0;i<3;i++)
   {
       for(j=0;j<4;j++)
       {
           if (j==c)
               total+=arr[i][j];
       }
      
   }  
   return total;  
  
}

int getHighestInRow(int arr[3][4],int r)
{
   int total=0,i,j;
   int max=INT_MIN;  
  
   for(i=0;i<3;i++)
   {
       for(j=0;j<4;j++)
       {
           if (i==r)
           {       if (arr[i][j]> max)      
                       {
                           max=arr[i][j];
                       }
              
           }
       }
      
   }  
   return max;  
  
}
int getLowestInRow(int arr[3][4],int r)
{
   int total=0,i,j;
   int min=INT_MAX;  
  
   for(i=0;i<3;i++)
   {
       for(j=0;j<4;j++)
       {
           if (i==r)
           {       if (arr[i][j]< min)      
                       {
                           min=arr[i][j];
                       }
              
           }
       }
      
   }  
   return min;  
  
}

int main()
{
   int arr[3][4]={
  
   {1,2,3,4},
  
   {2,3,4,5},
  
   {1,7,8,9},
  
   };
  
   int t=getTotal(arr);
   cout<<"total is "<<t;
  
   double a=getAverage(arr);
   cout<<"\nAverage is "<<a;
  
   int rt=getRowTotal(arr,0);
   cout<<"\nrow total is "<<rt;
  
   int ct=getColumnTotal(arr,0);
   cout<<"\ncolumn total is "<<ct;
  
   int m=getHighestInRow(arr,2);
   cout<<"\n Max value in row is "<<m;
  
   int mi=getLowestInRow(arr,2);
   cout<<"\n Min value in row is "<<mi;
  
      return 0;
}

SCREENSHOT FOR OUTPUT: