
Concept explainers
Statement-1:
Program:
//Header file
#include <iostream>
using namespace std;
//Main function
int main()
{
//Declare the array variable and initialize it
int values[5]={4,7,6,8,2};
//Display the subscript of the array
cout << values[4] << endl;
//Pause the system
system("pause");
//Return the statement
return 0;
}
Explanation:
In the above code, the array contains 5 values in it and the subscript of the array starts from 0 to 4.
This can be written as,
values[0]= 4;
values[1]= 7;
values[2]= 6;
values[3]= 8;
values[4]= 2;
Thus, the subscript of the array of values[4] contains the value “2”.
Sample Output:
2
Press any key to continue . . .
Therefore, the
Statement – 2:
Program:
//Header file
#include <iostream>
using namespace std;
//Main function
int main()
{
//Declare the array variable and initialize it
int values[5]={4,7,6,8,2};
//Display the subscript of array
cout << values[2]+values[3] << endl;
//Pause the system
system("pause");
//Return statement
return 0;
}
Explanation:
In the above code, the array contains 5 values in it and the subscript of the array starts from 0 to 4.
This can be written as,
values[0]= 4;
values[1]= 7;
values[2]= 6;
values[3]= 8;
values[4]= 2;
Thus, the subscript of the array of values[2] contains the value “6” and the subscript of the array of values[3] contains the value “8”.
Sample Output:
14
Press any key to continue . . .
Therefore, after adding these two values, the program displays the value “14” in the output screen for statement2.
Statement – 3:
Program:
//Header file
#include <iostream>
using namespace std;
//Main function
int main()
{
//Declare the array variable and initialize it
int values[5]={4,7,6,8,2};
//Display the subscript of array
cout << ++values[1] << endl;
//Pause the system
system("pause");
//Return statement
return 0;
}
Explanation:
In the above code, the array contains 5 values in it and the subscript of the array starts from 0 to 4.
This can be written as,
values[0]= 4;
values[1]= 7;
values[2]= 6;
values[3]= 8;
values[4]= 2;
In the highlighted statement, the subscript of the array of values[1] contains the value “7” and it is pre-incremented by 1.
Sample Output:
8
Press any key to continue . . .
Therefore, the program displays the value “8” in the output screen for statement3.

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Chapter 7 Solutions
Starting Out with C++ from Control Structures to Objects (8th Edition)
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