Answer to Question #214174 in C++ for Jaguar

Question

QUESTION 8 

Assuming the following declarations: 

const int NUMROWS = 3; 

const int NUMCOLS = 4; 

int val[NUMROWS][NUMCOLS] = {8,16,9,52,3,15,27,6,14,25,2,10};

Which of the following loops correctly outputs each element of the array in row order? 

1. for (i = 0; i < NUMROWS; i++) 

{ 

 for (j = 0; j < NUMCOLS; j++) 

 cout << setw(4) << val[i][j]; 

 cout << endl; 

} 

2. for (i = 0; i < NUMROWS; i++) 

{ 

 cout << setw(4) << val[i][j]; 

 cout << endl; 

} 

3. for (i = 0; i < NUMCOLS; i++) 

{ 

 cout << setw(4) << val[i][j]; 

 cout << endl; 

} 

4. for (i = 0; i < NUMROWS*NUMCOLS; i++) 

{ 

 cout << setw(4) << val[i][j]; 

 cout << endl; 

}

Answer 1

Correct Answer
1. 
for (i = 0; i < NUMROWS; i++){  
   for (j = 0; j < NUMCOLS; j++) 
      cout << setw(4) << val[i][j];
      cout << endl; 
}