public class Defination {
    public static void main(String[] args){
        System.out.println("The program is running");    
        boolean b = true; // bool value
        int x = 8;      // integer
        double d = 3.14159; // for easy use, I will only use double at the beginning
        char c = 's';  // character
        System.out.println(c);    
    }
}