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.
I don’t understand please speak English
All of the given answer options are necessary to operate the enterprise resource planning (ERP) system when defining a system landscape.
Enterprise resource planning (ERP) can be defined as a business strategy process through which business firms manage and integrate the main parts of their day-to-day business activities by using software applications.
The main objective and purpose of an enterprise resource planning (ERP) system is to significantly reduce costs by integrating all the operations of a business firm.
In Computer science, when defining a system landscape, all of the following are necessary to operate the enterprise resource planning (ERP) system:
Read more on ERP system here: brainly.com/question/25752641
They are arranged the way they are because of the QWERTY layout. It was used to slow down how people typed so they wouldn't get the typewriter jammed. Hope this helps. :)
A common technique for remembering the order<span> of </span>operations<span> is the abbreviation "PEMDAS", which is turned into the phrase "Please Excuse My Dear Aunt Sally". It stands for "Parentheses, Exponents, Multiplication and Division, and Addition and Subtraction".</span>
