There is not really a key benifit, but it does help with little things.
There are several things.
Some which include of
<span>Hard Disk Drive (HDD)
</span><span>Processor (CPU)
</span><span>Graphics card
</span>and
<span>Memory (RAM)</span>
Answer: TRUE
Explanation: Composite is simply used to refer to the existence of more than one event or pattern. The composite primary key as related to database management query refers to the synergy or combination of more than one field or column of a specified table which is used in sorting or accurate identification of a record. When attributes are combined, that is more than one, it assists in narrowing down the returned records such that records which are close and exclusive to the options specified are returned. Usually, the more the number of columns which makes uo the case mpoaite keys, the more unique and well sorted our returned output is.
Answer:
The solution code is as follows:
- #include <iostream>
- #include <fstream>
- #include <string>
- using namespace std;
- int main()
- {
- ifstream data;
- float number;
- float sum = 0;
-
- data.open("numbers.txt");
-
- while (data >> number) {
- sum = sum + number;
- }
- cout<<sum;
- return 0;
- }
Explanation:
Firstly, we create a ifstream object, <em>data</em> (Line 9). Then we can use the ifstream object to open the "numbers.txt" (Line 13) and use while loop to traverse through the number in the text file line by line (Line 15). White the loop is ongoing the number in each line is read by >> operator in a similar way to cin and then add each read number to sum variable (Line 16).
At last, display the output (Line 18).
