Suppose the input for number is 9. What is the output from running the following program?

```
import java.util.Scanner;

public class Test {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
System.out.print("Enter an integer: ");
int number = input.nextInt();

int i;

boolean isPrime = true;
for (i = 2; i < number && isPrime; i++) {
if (number % i == 0) {
isPrime = false;
}
}

System.out.println("i is " + i);

if (isPrime)
System.out.println(number + " is prime");
else
System.out.println(number + " is not prime");
}
}
```
a. i is 3 followed by 9 is prime
b. i is 3 followed by 9 is not prime
c. i is 4 followed by 9 is prime
d. i is 4 followed by 9 is not prime

d. i is 4 followed by 9 is not prime
isPrime is initialized to true. The loop tests if number is divisble by i for i from 2, 3, and so on. When i is 3, isPrime is false. The loop continuation condition becomes false. The loop is not finished. Before the loop continuation condition is checked, i++ increments i by 1. So, output is that i is 4 and following by 9 is not prime. So, the correct answer is is executed n times for i from 1 to n. So, the correct answer is D.

Computer Science & Information Technology

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