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.
Lipids are fat and carbohydrates are used to provide your body with energy so they are always being used
Answer:
Some key points to remember, when handling the linked list are as follow:
- Linked list is the linear data structure in which each of the elements contain separate object.
- Linked list components are not store in a contiguous location.
- In the linked list the elements or components are basically use the pointers for linked with another elements.
- The last node of the linked list must contain null value.
- In the linked list, the allocation of the memory is equal to upper node limit.
