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.
<span>b. In
Slide Sorter view, the user can zoom in to read text on slides more
easily or zoom out to see more of the presentation’s slides at once.
Moreover, in Normal View, the number of slides that you can see together at once is quite less, so it is more advantageous to use the Slide Sorter View to sort your slides
</span>
Enroll a student identified by her snum into the class named 'Introduction to Database Systems' is the following transactions, state the SQL isolation level you would use.
1. Enroll a student identified by her snum into the class named 'Introduction to Database Systems'.
<u>Explanation:</u>
Since enroll is unique in the university enrollment database schema and field name is SNUM and it is data type is an integer. To identify student class name and department name and name of student SNUM field is used for searching in university enrollment database schema. Enrollment changing is not possible of the student’s not possible or not good practices in university enrollment database schema.
If a query had been made class wise or department wise enrollment is played an important role.
For assign, a faculty is made on the class id or department id.
The purpose of bit stuffing is used as a delimiter to mark the end of one frame and the beginning of the next frame.
<h3>What is Bit Stuffing?</h3>
This refers to the use of one or more information bits in order to break up the message for easy synchronization.
The parts of a frame are:
- Frame header
- Payload field
- Trailer
- Flags.
<h3>What is a Flag?</h3>
This is a bit pattern that is used to define the start and end bits in a given frame and the 8-bit pattern 01111110 as the flag is commonly used.
Hence, we can see that your question is incomplete so I gave you a general overview to help you have a better understanding of the concept.
Read more about bit stuffing here:
brainly.com/question/12949292
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