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Arduino/build/shared/examples/8.Strings/StringConstructors/StringConstructors.pde

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2010-07-27 21:03:52 +02:00
/*
String constructors
Examples of how to create strings from other data types
The circuit: No external hardware needed.
created 27 July 2010
by Tom Igoe
This example code is in the public domain.
*/
void setup() {
Serial.begin(9600);
}
void loop() {
String stringOne = "Hello String"; // using a constant String
Serial.println(stringOne); // prints "Hello String"
stringOne = String('a'); // converting a constant char into a String
Serial.println(stringOne); // prints "a"
String stringTwo = String("This is a string"); // converting a constant string into a String object
Serial.println(stringTwo); // prints "This is a string"
stringOne = String(stringTwo + " with more"); // concatenating two strings
Serial.println(stringOne); // prints "This is a string with more"
stringOne = String(13); // using a constant integer
Serial.println(stringOne); // prints "13"
stringOne = String(analogRead(0), DEC); // using an int and a base
Serial.println(stringOne); // prints "453" or whatever the value of analogRead(0) is
stringOne = String(45, HEX); // using an int and a base (hexadecimal)
Serial.println(stringOne); // prints "2d", which is the hexadecimal version of decimal 45
stringOne = String(255, BIN); // using an int and a base (binary)
Serial.println(stringOne); // prints "11111111" which is the binary value of 255
stringOne = String(millis(), DEC); // using a long and a base
Serial.println(stringOne); // prints "123456" or whatever the value of millis() is
// do nothing while true:
while(true);
}