java 2 chapter 7 solve problems part 5(Arabic)

9. [2-Dimentional array] Assume that charges for delivering and handling packages for University of
Success is as follow:
Weight in Kg Charge in BD
Less or equal to 5 5
Greater than 5 and Less or equal to 10 8 plus 10% of weight
Greater than 10 and Less than or equal to 30 12 plus 15% of weight
Greater than 30 20 plus 25% of weight
University of Success has four departments. Each department receives five packages of books. Write a
Java program that will ask the user for the weight of each package in Kg for each department. The
program should then compute the total weight and the net charge for all the packages for each
department according to the table above. Your program should print a table showing the weight, total
weight, and the charge for each department as shown below.

Prepared by: Alia AlKameli (2018-2019, second semester)
11. [2-Dimentional array] A magic square is an n by n array in which each element is an integer
between 1 and n*n and all column sums, row sums and diagonal sums are equal.
For example, the following is a 3 by 3 magic square in which each row, each column, and each
diagonal adds up to 15.
4 3 8
9 5 1
2 7 6
Write a java method magicSquare that takes as parameter a two-dimensional array. The program
should check and output whether it is a magic square or not.