/* 9/24/2019
 * your name
 * CISC 1115
 * Data in a program
 * variables are used to represent data
 * you must specify the type of a variable
 * ex:
 * int -- integer ..., -1, 0, 1, 2, ...
 * double -- this kind of number can have a decimal point 
 * ex: 5.67, .001 etc
 * 
 * Variables must be DECLARED
 * e.g. int number; is a variable declaration
 * name of a variable is an IDENTIFIER (letters, numbers, _, no spaces)
 * 
 * Compiler error to have an UNINITIALIZED VARIABLE
 * Assignment operator =
 * put whatever is on the right into the left (lvalue)
 */
public class Variables {
  
  public static void main(String[] args) {
    
    int number=0;
    System.out.println(number);
    number=100;
    System.out.println("Now number=" + number);
    // 100=number; NO GOOD
    // number = "5";
    int itemsOrdered;
    itemsOrdered=3;
    int quantityOnHand=300;
    System.out.println("You ordered: " +itemsOrdered + " items,"
                         + " we have " + quantityOnHand + " items left.");
    // exampe of double variable
    double price=32.5;
    
  }
  
}