Add a string instance variable, messageuponexiting, to the window class. this variable will be used to display a message when the user closes the window (for example, "are you sure you want to quit? "). furthermore, this variable should be accessible to all subclasses of the window class, as each sort of window may require a different message upon exiting. provide the declaration of the instance variable only—nothing else.

What computer network component allows data transfers from one computer to another through a telephone line?

Write a program called assignment3 (saved in a file assignment3.java) that computes the greatest common divisor of two given integers. one of the oldest numerical algorithms was described by the greek mathematician, euclid, in 300 b.c. it is a simple but very e↵ective algorithm that computes the greatest common divisor of two given integers. for instance, given integers 24 and 18, the greatest common divisor is 6, because 6 is the largest integer that divides evenly into both 24 and 18. we will denote the greatest common divisor of x and y as gcd(x, y). the algorithm is based on the clever idea that the gcd(x, y) = gcd(x ! y, y) if x > = y and gcd(x, y) = gcd(x, y ! x) if x < y. the algorithm consists of a series of steps (loop iterations) where the “larger” integer is replaced by the di↵erence of the larger and smaller integer. this continues until the two values are equal. that is then the gcd.

Which of the choices sean are not true when considering virus behavior