Java Program

7.15 Array Problem 2: String

Ask the user for a string input. Get all characters, store them in an array, sort them, and print the resulting string.

7.16 Array Problem 3: 2D array

Ask the user for 4 integers

Store them as a 2x2 matrix

Find the determinant

Matrix: input1 input2 input3 input4

7.17 Array Problem 4: Determinant

Take 9 integers from the user

Store them in a 3x3 matrix

Print its determinant