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.
1. spreadsheet
2. Computers will continue to become smaller in size and become faster
Answer:
c. offers a great deal of network control and lower cost.
Explanation:
A network topology can be defined as a graphical representation of the various networking devices used to create and manage a network.
Compared with a star topology, a hierarchical topology offers a great deal of network control and lower cost.
Answer:
down below
Explanation:
score = input() # gets student's score input
max = input() # gets max number
percent = (score/max)*100 # multiply by a hundred to get percentage
if percent > 52: # checks if percent is greater than 52
print("well dont you have at least a grade 5")
else # if percent is less than or equal to 52 it will print this instead
print("Unlucky, you need to revise more for the next test.")
THIS PART IS NOT CODE:
make sure you indent/tab the print statements or else you'll get an error
