Answer:
The code will give an error that is "At least one public class is required in main file".
Explanation:
In the given code if we do not use the public access modifier to the class. It will give an error so, the correct code to this question as follows:
Program:
import java.util.HashSet; //import package
public class A //define class as public.
{
public static void main(String[ ] args) //define main method.
{
HashSet set = new HashSet(); //creating hashset object.
set.add("A"); //add alphabet in hashset
set.add("B"); //add alphabet in hashset
set.add("C"); //add alphabet in hashset
System.out.print("Size of HashSet is :"set.size()); //print the size of hashset.
}
}
Output:
Size of HashSet is : 3
Explanation of the program:
- In the above program, we define a public class that is "A" and inside the class, we define the main method.
- Inside the main method, we create a HashSet class object that is "set".
- To add elements in HashSet we use add() function that adds elements and in the last, we use the size() function that prints the size HashSet.
Explanation:
There are five phases of film production and they include development, pre-production, production, post-production and distribution.
Carlos Should use a Security Camera to keep track of his physical hardware. Carlos can then use a computer to monitor the security cameras.
where it says " def main() " there needs to be something in the "()"
Hope this helps. : )
<span>1. Deleting files accidentally
</span>
2. Viruses and damaging malware
3. Mechanical damages of hard drive
4. Power failures
5. Theft of computer
6. Spilling coffee, and other water damages
7. Fire accidents and explosions
<span>Hope this helps.</span>
