This assignment will give you practice with interactive programs, if/else statements, and methods that return values. Turn in a Java class named Grades in a file named Grades.java. You will be using a...

This assignment will give you practice with interactive programs, if/else statements, and methods that return values. Turn in a Java class named Grades in a file named Grades.java. You will be using a Scanner object for console input, so you will need to import java.util.*; into your program. (Make sure you are using Java v1.5, otherwise the Scanner will not be found.)This program uses a student's grades on homework, a midterm exam, and a final exam to compute an overall course grade. The course grade is a weighted average. To compute a weighted average, the student's point scores in each category are divided by the total points for that category, then multiplied by that category's weight. (The sum of all categories' weights should be 100.)