Answer:
Following are the program in the C++ Programming Language.
#include <iostream>
using namespace std;
//define function for swapping
void SwapValues(int* userVal1,int* userVal2){
//set integer variable to store the value
int z = *userVal1;
//interchange their value
*userVal1 = *userVal2;
//interchange their value
*userVal2 = z;
}
//define main method
int main()
{
//declare variables
int x,y;
//get input from the user
cin>>x>>y;
//Call the method to swap the values
SwapValues(&x,&y);
//print their values
cout<<x<<" "<<y;
return 0;
}
<u>Output</u>:
3 8
8 3
Explanation:
<u>Following are the description of the program</u>.
- Firstly, we define required header file and function 'SwapValues()', pass two pointer type integer variables in argument that is 'userVal1' and 'userVal2'.
- Set integer data type variable 'z' and initialize the value of 'userVal1' in it, then initialize the value of 'userVal2' in 'userVal1' and then initialize the value of 'z' in 'userVal2'.
- Finally, define the main method in which we set two integer type variables and get input from the user in it then, call and pass those variables and print it.
Answer:
The complete program is:
import java.util.Scanner;
class Main
{
public static void main (String [] args) {
int numObjects;
Scanner scnr = new Scanner(System.in);
numObjects = scnr.nextInt(); // Program will be tested with values: 15, 40.
System.out.println(numObjects);
}
}
Explanation:
The program is as mentioned above, And we can check with inputs 15, and 40. And it was found that correct answer is obtained on running the program.
In a relational database, the three basic operations used to develop useful sets of data are:

