[RESOLVED] Help with JOptionPane

[Drazzminius]

I'm in the US Marines and stationed in Japan. I'm taking an online Java Programming class (part of my degree curriculum) and am only in week 2. I have the following task:

Write a Java program that reads an integer and checks whether it is even.

If your input is 25, your output should be:

Is 25 even?

false

If your input is 2000, your output should be:

Is 2000 even?

true

Also, the program must check if the number the user entered is between 1 and 1000.

If your input is 25, your output should be:

The number 25 between 1 and 1000 is true.

If your input is 2000, your output should be:

The number 2000 between 1 and 1000 is false.

1.The input and output must use JOptionPane dialog and display boxes.

My code thus far is:

import javax.swing.JOptionPane;

public class NumberChecker {
   public static void main (String args[]) {
      // Prompt the user to enter a number
     String numberString = JOptionPane.showInputDialog(null, "Enter a number:", "Number Checker", JOptionPane.QUESTION_MESSAGE);
		
     //  Convert the string into an int value
     int number = Integer.parseInt(numberString);
				
     //  Check if the number is even
     int isEven; { 
     number = number % 2;
		
     //  Display the result in a message dialog box declaring if it is even or odd
     JOptionPane.showMessageDialog(null, "Is " + number + " an even number?\n> " + isEven, "Number Checker", JOptionPane.INFORMATION_MESSAGE);}
	}
     //  Check if the number is in the prescribed range
     boolean isRange; {  
     return ! ((1 < number) && (number < 1000)); 
			
     // Display the result in a message dialog box declaring if it falls in the prescribed range
     JOptionPane.showMessageDialog(null, "Is the number " + number + " between 1 and 1000?\n> " + isRange, "Range Checker", JOptionPane.INFORMATION_MESSAGE);}
     {
     System.exit (0);
     }
}

My problem is that when I go to compile, I'm receiving errors for the return ! and an error code for my range checker saying that it is looking for a symbol. Can anyone tell me what I'm doing wrong and why?

Thank you in advance!