1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
|
/*
String Case changes
Examples of how to change the case of a String
created 27 Jul 2010
modified 2 Apr 2012
by Tom Igoe
This example code is in the public domain.
https://www.arduino.cc/en/Tutorial/BuiltInExamples/StringCaseChanges
*/
void setup() {
// Open serial communications and wait for port to open:
Serial.begin(9600);
while (!Serial) {
; // wait for serial port to connect. Needed for native USB port 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);
}
|
