import java.util.Scanner; public class MonthlyTemperature { private static final int WEEKS = 4; private static final int DAYS_IN_WEEK = 7; private static double[][] temperatures = new double[WEEKS][DAYS_IN_WEEK]; private static boolean dataEntered = false; public static void main(String[] args) { Scanner scanner = new Scanner(System.in); int choice; do { displayMenu(); while (!scanner.hasNextInt..