1
0
mirror of https://github.com/arduino/Arduino.git synced 2024-12-04 15:24:12 +01:00
Arduino/build/shared/examples/8.Strings/StringConstructors/StringConstructors.pde

61 lines
1.7 KiB
Plaintext
Raw Normal View History

2010-07-27 21:03:52 +02:00
/*
String constructors
Examples of how to create strings from other data types
created 27 July 2010
by Tom Igoe
This example code is in the public domain.
*/
void setup() {
Serial.begin(9600);
}
void loop() {
// using a constant String:
String stringOne = "Hello String";
2010-07-27 21:03:52 +02:00
Serial.println(stringOne); // prints "Hello String"
// converting a constant char into a String:
stringOne = String('a');
2010-07-27 21:03:52 +02:00
Serial.println(stringOne); // prints "a"
// converting a constant string into a String object:
String stringTwo = String("This is a string");
2010-07-27 21:03:52 +02:00
Serial.println(stringTwo); // prints "This is a string"
// concatenating two strings:
stringOne = String(stringTwo + " with more");
// prints "This is a string with more":
Serial.println(stringOne);
2010-07-27 21:03:52 +02:00
// using a constant integer:
stringOne = String(13);
2010-07-27 21:03:52 +02:00
Serial.println(stringOne); // prints "13"
// using an int and a base:
stringOne = String(analogRead(0), DEC);
// prints "453" or whatever the value of analogRead(0) is
Serial.println(stringOne);
// using an int and a base (hexadecimal):
stringOne = String(45, HEX);
// prints "2d", which is the hexadecimal version of decimal 45:
Serial.println(stringOne);
// using an int and a base (binary)
stringOne = String(255, BIN);
// prints "11111111" which is the binary value of 255
Serial.println(stringOne);
// using a long and a base:
stringOne = String(millis(), DEC);
// prints "123456" or whatever the value of millis() is:
Serial.println(stringOne);
2010-07-27 21:03:52 +02:00
// do nothing while true:
while(true);
}