Problem:
Question 1: Write a Java program that can calculate and print out the area of a circle. The user enters data of the radius and its measurement unit ("in" for inch, "ft" for feet, "cm" for centimeter, and "m" for meter) from the console. The program should check to be sure that the radius is not negative and the measurement unit must be one among the listed-above units.
Question 2: Write a code for latin square C++. You have to ask for user input for the order and the starting number.
Any help would be greatly appreciated!