Scalar Values are single numbers or values, which may include integers, floating-point decimals, or strings of characters.
A(n) array is a group of scalar or individual values that are stored in one entity.
A(n) user-defined type is a data type that is assigned a true or false value by a programmer.
A(n) abstract data type is a data type that can be assigned multiple values.
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.
The beginning development of a
star is marked by a supernova explosion, with the gases present in the nebula
being forced to scatter. As the star shrinks, radiation of the surface
increases and create pressure on the outside shell to push it away and forming
a planetary nebula or white dwarf.
Answer:
Hit the X Button Located on the top right corner or hit Control, Alt, Delete
Explanation:
Hitting the X button will make you exit the whole cite, or hitting Control, Alt, Delet, will make you go to the task bar, in which you can go to the bottom right of that screen and it should say end task
