// grades ... example #2

import javax.swing.JOptionPane;
public class grades {
  public static void main(String[] args) {
    // Prompt the user to enter a number: 
    String numString = JOptionPane.showInputDialog(null, 
      "Enter your grade:", "Input Window Demo", 
      JOptionPane.QUESTION_MESSAGE);
    // Convert the string into an int value
    int grade = Integer.parseInt(numString);
	System.out.println(" Your grade is " + grade + ".");
	
        if (grade > 100)
            System.out.println("You are a genius!");
        else 
	    if (grade >= 90)
            	System.out.println("You got an A!");
            else 
           	if (grade >=80) 
	      	   System.out.println("You got a B!");   
	    	else 
 		    if (grade >= 70)
                    	System.out.println("You got a C!");
                    else 
			if (grade >= 60)
                            System.out.println("You got a D!");
                        else 
    	                    System.out.println("You did not pass.");
    System.exit(0);
  } 
}