Changes between Version 2 and Version 3 of ControlSystems/SoftwareTeam/Training/GettingStarted/Conditionals

Timestamp:

Nov 4, 2019, 3:28:03 PM (6 years ago)

Author:

David Albert

Comment:

--

ControlSystems/SoftwareTeam/Training/GettingStarted/Conditionals

@@ -27 +27 @@
 * Change the values stored in the variable rangeInInches to 25 and observe the flow of the program.
 
-=== Extra Credit ===
+=== Understanding the program
+In the example above, we 
+1. Create a variable named rangeInInches.  Notice how the name of the variable conveys information about what type of information can be held in it including the units; this is a very good programming practice and will make your programs more readable.
+1. Store a value (10) in the variable rangeInInches.[[BR]]
+   In a robot program, we might get the value from a distance measurement sensor.
+1. Compare the value to 20
+   1. If the value is less than 20, we display the message ''stop motors so we don't crash!''.[[BR]]
+      In a robot program, we would actually stop the motors
+   1. If the value is not less than 20, we display the message ''full speed ahead!''
+
+
 Java allows you to have multiple conditionals using the syntax:
 {{{
@@ -41 +51 @@
 You can have as many ''else if'' clauses as you wish.
 
-* Try adding an ''else if'' clause to the sample program.
-
 Some things to note:
 * The conditions are always placed within parentheses
@@ -48 +56 @@
 * The conditions are evaluated in order and the '''first''' condition that matches is executed, the rest are skipped
 * The ''else if'' and ''else'' clauses are optional
+
+=== Extra Credit ===
+* Try adding an ''else if'' clause to the sample program:
+* Read more about Java conditionals [https://www.w3schools.com/java/java_conditions.asp here]
+