Write a java program that emulates a simple calculator: prompts the user to input the left operand and read it into a double variable. prompts the user to input the right operand and read it into a double variable. display a menu which gives the user the choice of the following menu options: 1 -> multiplication 2 -> division 3 -> addition 4 -> subtraction and uses a user validation loop to read their response into a string variable. note: you must repeatedly get the users response until it is exactly one of the characters 1 2 3 4 compute the result of the arithmetic expression, based on the operands and operator provided, and display the entire expression with its result.

Which of the following is not a symptom of chronic fatigue syndrome

Write a grading program for a class with the following grading policies: a. there are two quizzes, each graded on the basis of 10 points. b. there is one midterm exam and one final exam, each graded on the basis of 100 points. c. the final exam counts for 50% of the grade, the midterm counts for 25%, and the two quizzes together count for a total of 25%. (do not forget to normalize the quiz scores. they should be converted to a percentage before they are averaged in.) any grade of 90 or more is an a, any grade of 80 or more (but less than 90) is a b, any grade of 70 or more (but less than 80) is a c, any grade of 60 or more (but less than 70) is a d, and any grade below 60 is an f. the program will read in the student’s scores and output the student’s record, which consists of two quiz and two exam scores as well as the student’s average numeric score for the entire course and final letter grade. define and use a structure for the student reco

Read each statement below. if the statement describes a peer-to-peer network, put a p next to it. if the statement describes a server-based network, put an s next to it. p - peer-to-peer s - server-based