| /* |
| String Case changes |
| |
| Examples of how to change the case of a string |
| |
| created 27 July 2010 |
| modified 2 Apr 2012 |
| by Tom Igoe |
| |
| http://arduino.cc/en/Tutorial/StringCaseChanges |
| |
| This example code is in the public domain. |
| */ |
| |
| void setup() { |
| // Open serial communications and wait for port to open: |
| Serial.begin(9600); |
| while (!Serial) { |
| ; // wait for serial port to connect. Needed for Leonardo only |
| } |
| |
| // send an intro: |
| Serial.println("\n\nString case changes:"); |
| Serial.println(); |
| } |
| |
| void loop() { |
| // toUpperCase() changes all letters to upper case: |
| String stringOne = "<html><head><body>"; |
| Serial.println(stringOne); |
| stringOne.toUpperCase(); |
| Serial.println(stringOne); |
| |
| // toLowerCase() changes all letters to lower case: |
| String stringTwo = "</BODY></HTML>"; |
| Serial.println(stringTwo); |
| stringTwo.toLowerCase(); |
| Serial.println(stringTwo); |
| |
| |
| // do nothing while true: |
| while(true); |
| } |
