// 9/6/2017
// This program introduces expressions
// expression is built from variables, literals,
// and operators. It always evaluates to a single value.
/***
* /  asterisk is times and forward slash is divide
+ -  add and subtract
****/
public class expressions {
  
  public static void main(String[] args)   {
    
       System.out.println( "This is the first line of my pgm." );
       double taxes=0.0, rate=0.0; 
       int hoursWorked=0;
       System.out.println("taxes: " + taxes);
       rate=17.1;
       hoursWorked=10;
       // value of an expression is printed by println
       System.out.println("pay is: " + rate*hoursWorked);
       double pay;
       // value of expression is assigned to a variable
       pay=rate*hoursWorked;
       System.out.println("pay is: " + pay);
       double oldRate;
       oldRate=rate;
       rate=20;
    }
}

/*
 * Lab2:  Write a program that declares 1 variable of type double
 * to represent:  today's temperature in degrees Faranheit
 * 
 * A variable of type boolean to represent whether it is raining
 * today or not.
 * 
 * An int to represent the class meeting.
 * 
 * Print the following message:
 * Today is the nth class meeting, it is false raining, and the
 * temperature outside is q degrees faranheit.
 * /