In java please write a program according to the instructions. below a demo is provided. public class Demo
{
public static void main()
{
Student[] roster = {new Student("Karen",3),
new Student("Liz",1),
new Student("Paul",4),
new Student("Lester",1),
new Student("Henry",5),
new Student("Renee",9),
new Student("Glen",2),
new Student("Fran",6),
new Student("David",1),
new Student("Danny",3)};
SeatingChart chart = new SeatingChart(roster,3,4);
chart. printSeatingChart();
System. out. println("\nRemoving absent students:\n");
chart. removeAbsentStudents(4);
chart. printSeatingChart();
}
}

Which of the following has not been attributed at least in part to social media a. drug addiction b. depression c. kidnapping d. murder

Consider a direct-mapped cache with 216 words in main memory. the cache has 16 blocks of 8 words each. it is a word-addressable computer (rather than a byte-addressable computer which we normally discuss). (a) how many blocks of main memory are there? (b) what is the format of a memory address as seen by the cache, that is, what are the sizes of the tag, cache block, and block offset fields (if they apply)? (c) to which cache block will the memory reference db6316 map?

Write a method that takes in an array of point2d objects, and then analyzes the dataset to find points that are close together. be sure to review the point2d api. in your method, if the distance between any pair of points is less than 10, display the distance and the (x,y)s of each point. for example, "the distance between (3,5) and (8,9) is 6.40312." the complete api for the point2d adt may be viewed at ~pf/sedgewick-wayne/algs4/documentation/point2d.html (links to an external site.)links to an external site.. try to write your program directly from the api - do not review the adt's source code.