new to java

[Typhane20]

I'm new to java and i'm taking this java class in I have to create a program that prompts the user to enter his/her high school's name, and two decimal number (ie. 5.8, 3.45). what i have is

public class FirstProgram2
{
        public static void main (String[] args)
       {
                System.out.println("Martin Luther King High School.") ;
                System.out.println("Karen Walker.") ;
                System.out.println("5.8.") ;
                System.out.println("3.45.") ;

               System.out.println("Let's demonstrate a simple calculation.") ;
               int answer;
               answer = 2 + 2;
               System.out.println (3 + 5);
      }
}


every time i try to run it, it says i have a error, i have no idea where i went wrong any help will do

[nanosani]

import javax.swing.JOptionPane;
public class FirstProgram2
{
        public static void main (String[] args)
       {
            String school = JOptionPane.showInputDialog("Enter your school name"); 
            String first = JOptionPane.showInputDialog("Enter first decimal number") ;
            String second = JOptionPane.showInputDialog("Enter second decimal number") ;
                

               System.out.println("Your school's name is " + school) ;
               System.out.println("first number you entered is " + first);
               System.out.println("second number you entered is " + second);  

      }
}

[nanosani]

If you want to do anything else .. what are you planning to do ... and what exactly are the errors you are getting.??