You have a file that is not empty, and you want to preserve the contents and append to the end of the file. Give the commands necessary to open a file for appending.
What will be an ideal response?
#include
//. . .
using std::ofstream;
using std::ios;
ofstream outStream;
outStream.open(“myFile.txt”, ios::app);
Explanation: The using declarations of ofstream and ios make these name available. The first argument is the system name of the file to be opened. The second, ios::app, is an optional argument for the open member function that causes the file to be opened with the write position at end of file and causes writes to the file to be appended.
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Recursion can be used to
A) compute factorials. B) find the greatest common divisor of two integers (GCD). C) program things that cannot be programmed without recursion. D) All of the above E) Both A and B, but not C
What will be the size of the array stones after the following two lines of code are executed?
``` Dim stones() As String = {Watts"; "Jagger", "Wood&", "Richards"} ReDim Preserve stones(10)```
In a gossip system, a front end has vector timestamp (3, 5, 7) representing the data it has received from members of a group of three replica managers. The three replica managers have vector timestamps (5, 2, 8), (4, 5, 6) and (4, 5, 8), respectively. Which replica manager(s) could immediately satisfy a query from the front end and what is the resultant time stamp of the front end? Which could incorporate an update from the front end immediately?
What will be an ideal response?
You can use the Like operator to find values in a field that match a specified pattern
Indicate whether the statement is true or false