// Whitaker Brand
// CSE142
// Instructor: Whitaker Brand
// TA: Whitaker Brand
// 
// This class demonstrates some basics about variables.

public class VariableExample {
   public static void main(String[] args) {
      // basic int (integer) and double (real) number
      int x = 3;
      double grade = 4.0;
      
      // You can hold strings in variables, too!
      String s = "hello";
      
      System.out.println(x);   // prints 3
      
      // We can change what we stored in x:
      x = 7;
      System.out.println(x);   // prints 7
      
      
      // This line of code adds 6 to x, but doesn't do anything with
      // the result of the multiplication. It's an illegal statement,
      // and doesn't make much sense in java.
      // x + 6;
      
      
      // This is the correct way to add 6 to x: reassign it.
      x = x + 6;
      
      System.out.println(x);   // prints 13
      
      // x++ is shorthand for x = x + 1 -- they do the same thing
      x = x + 1;
      x++;
            
      // Note the + with the String: it puts the numerical value
      // of x onto the end of the String.
      System.out.println("the value of x is " + x);
      
      // prints: the value of x is 15
   }
}