Help. new Java student

Question

Hi. Can anyone help me write a Java program that ask the user to input their class and the grade they think they will get in each class. Then find the grade point average for that user. it needs to use JOptionPane and display the classes, its grade, and the users grade point average

Answer 1

Self-note: Class needs to ask what class, ask what grade in that class, get gradepoint average.
If you're like me when I first took java and I started getting advice, though I heard terms like method/constructor/etc, I didn't truly start to understand it until way later.
Does your teacher require you to use more than 1 class for this program and are you using an IDE (Eclipse, netbeans, etc)?
Usually an IDE will give you options to complete a JOptionPane which saves your wrists some fatigue and helps you pick out what you need.
Here's something you may consider starting out with:
public class Grades{
double grade;
double gpa;
String course;
public static void main(String[] args) {
course = JOptionPane.showInputDialog("Please enter the class name");
grade = JOptionPane.showInputDialog("Please enter a grade of 1-100:");
}What that does is declare three variables (grade, gpa, and class).
Then it asks the user for their class name and a number grade from 1-100. (If your teacher isnt asking for anything specific like a letter grade then I would go with that)
It takes the user's input and stores it into grade and gpa as shown to the left of the Joptionpane( ie. grade = )
You'll probably want to make a loop and use a YES_NO_CANCEL Joptionpane (google for usage and ask for more help if you need help writing this)
So that a student can enter as many grades as he wants before stopping the program.
Then you'll have to take all those grades and get the average and assign a letter grade based on what the average is( im not sure exactly how GPA works but it's probably like if you have a grade of 90+ it's 4.0, 80+ is 3.0, etc etc)
Good luck mate.