< Subject Test
import java. util. concurrent.*;
public class Main (

public static void main(String[] args)
ConcurrentHashMap chm = new ConcurrentHashMap ();
chm. put(1, "Welcome");
chm. put(2, "to");
chm. put(3, "Java");
chm. put (4, "World");
chm. putIfAbsent (3, "World");
System. out. println("Elements: "+ chm);
chm. remove (2, "Welcome");
System. out. println("Elements after key 2 is removed: "+chm);
chm. putIfAbsent (3, "Java's");
System. out. println("Add new:,"+chm);
chm. replace(3, "Java", "Java New");
System. out. println("After Replacing: "+ chm);

Answer these and get 40 points and brainliest

Write a defining table and then a program that determines if you can sleep in or not. your program should get all its input from your computer’s clock. on all weekdays (monday through friday) that are not holidays, your program should output “get up! ” on all other days (weekends and holidays), your program should output “sleep in.” the three holidays that your program must check for are january 1 (new year’s day), july 4 (u.s. independence day), and december 25 (christmas). you don’t need to include other holidays in your program because most other holidays do not occur on a fixed day each year.

Austin rare coins, inc., buys and sells rare coins, bullion, and other precious metals through eight web sites with different domain names. an unknown individual took control of austin's servers and transferred the domain names to another registrant without austin's permission. the new registrant began using the domain names to host malicious content—including hate letters to customers and fraudulent contact information—and to post customers' credit-card numbers and other private information, thereby tarnishing austin's goodwill. austin filed a suit in a federal district court against the new registrant under the anticybersquatting consumer protection act. is austin entitled to a transfer of the domain names? austin rare coins, inc., buys and sells rare coins, bullion, and other precious metals through eight web sites with different domain names