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--- en:iot-open:programming_fundamentals_rtu:looping [2018/01/24 10:19] – Agrisnik
+++ en:iot-open:programming_fundamentals_rtu:looping [2020/07/20 09:00] (current) – external edit 127.0.0.1
@@ Line 44: / Line 44: @@
 <code c>
-int inputVariable = 0;
+int inputVariable = analogRead(2);
 while (inputVariable < 100)
 {
@@ Line 59: / Line 59: @@
 ===== Do while =====
-//Do while// cycle works almost the same like the //while// cycle. The difference is that in the //while// cycle the condition is checked before entering the loop, but in the //do while// cycle the condition is checked after execution of the statements in the loop and then if the condition is //TRUE// the loop repeats.
+//Do while// cycle works the same way like the //while// loop. The difference is that in the //while// cycle the condition is checked before entering the loop, but in the //do while// cycle the condition is checked after execution of the statements in the loop and then if the condition is //TRUE// the loop repeats. As the result, the statements inside the cycle will execute at least once, even if the test condition is //FALSE//.
+The construction of a //do while// cycle is the following:
+<code c>
+do {
+  //the body of the cycle
+} while (condition that is TRUE);
+</code>
+If the same code is taken from the //while// loop example and used in the //do while// cycle, the difference is that the code will execute at least once, even if the //inputVariable// value is more than or equal to 100. The example code:
+<code c>
+int inputVariable = analogRead(2);
+do {
+    digitalWrite(13, HIGH);
+    delay(10);
+    digitalWrite(13, LOW);
+    delay(10);
+    inputVariable = analogRead(2);
+} while (inputVariable < 100);
+</code>
+**Check yourself**
+. What loop where the condition is checked after the loop body is executed?
+. How long will the operators in the body of the loop will operate (while (x < 100))?
+. What value will be for variable //a//  after code executing <code C> int a; for(a = 0; a < 10; a++) {} </code>
+. Which of the following operators are not loop(s) in Arduino IDE?
+  * do while
+  * while
+  * repeat until
+  * for

en/iot-open/programming_fundamentals_rtu/looping.1516789197.txt.gz · Last modified: 2020/07/20 09:00 (external edit)