Corretions and refinements to the String examples

build/linux/work/examples/08.Strings/CharacterAnalysis/CharacterAnalysis.ino

@@ -15,8 +15,9 @@ void setup() {
   // Open serial communications and wait for port to open:
   Serial.begin(9600);
   // this check is only needed on the Leonardo:
-  while (!Serial) ;
-  ;
+  while (!Serial) {
+    ; // wait for serial port to connect. Needed fo Leonardo only
+  }
 
   // send an intro:
   Serial.println("send any byte and I'll tell you everything I can about it");
@@ -81,4 +82,3 @@ void loop() {
     Serial.println();
   }
 }
-

build/linux/work/examples/08.Strings/StringAdditionOperator/StringAdditionOperator.ino

@@ -20,13 +20,15 @@ void setup() {
   // initialize serial and wait for port to open:
   Serial.begin(9600);
   // this check is only needed on the Leonardo:
-  while (!Serial) ;
-  ;
+  while (!Serial) {
+    ; // wait for serial port to connect. Needed fo Leonardo only
+  }
 
   stringOne = String("stringThree = ");
   stringTwo = String("this string");
   stringThree = String ();
   Serial.println("\n\nAdding strings together (concatenation):");
+  Serial.println();
 }
 
 void loop() {

build/linux/work/examples/08.Strings/StringLength/StringLength.ino

@@ -15,8 +15,13 @@ String txtMsg = "";                         // a string for incoming text
 int lastStringLength = txtMsg.length();     // previous length of the String
 
 void setup() {
-  // open the serial port:
+  // Open serial communications and wait for port to open:
   Serial.begin(9600);
+  // this check is only needed on the Leonardo:
+  while (!Serial) ;
+  ;
+
+  Serial.println("\n\nString  length():");
 }
 
 void loop() {
@@ -40,4 +45,4 @@ void loop() {
     // note the length for next time through the loop:
     lastStringLength = txtMsg.length();
   }
-}
+}

build/linux/work/examples/08.Strings/StringLengthTrim/StringLengthTrim.ino

@@ -13,11 +13,11 @@
  */
 
 void setup() {
- // Open serial communications and wait for port to open:
+  // Open serial communications and wait for port to open:
   Serial.begin(9600);
   // this check is only needed on the Leonardo:
   while (!Serial) ;
- ;
+  ;
 
   Serial.println("\n\nString  length() and trim():");
 }