(:source http://github.com/arduino/Arduino/raw/master/build/shared/examples/08.Strings/StringAppendOperator/StringAppendOperator.ino lang=arduino tabwidth=4:)

(:source http://github.com/arduino/Arduino/raw/master/build/shared/examples/8.Strings/StringAppendOperator/StringAppendOperator.ino lang=arduino tabwidth=4:)

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In both cases, stringOne equals "A long integer: 123456789". Like the + operator, these operators are handy for assembling longer strings from a combination of data objects.

 (:divend:)

Hardware Required:

• Arduino Board

There is no circuit for this example, though your Arduino must be connected to your computer via USB.

image developed using Fritzing. For more circuit examples, see the Fritzing project page

(:source lang=arduino tabwidth=4:)

(:sourceend:)

(:source lang=arduino tabwidth=4:)

(:sourceend:)

(:source http://github.com/arduino/Arduino/raw/master/build/shared/examples/8.Strings/StringAppendOperator/StringAppendOperator.pde lang=arduino tabwidth=4:)

  // using += to add a long variable to a string:

Examples > Strings

Like the + operator, these operators are handy for assembling longer strings from a combination of data objects.

Examples > Control Structures

String Appending Operators

Just as you can concatenate Strings with other data objects using the StringAdditionOperator, you can also use the += operator and the cconcat() method to append things to Strings. The += operator and the concat() method work the same way, it's just a matter of which style you prefer. The two examples below illustrate both, and result in the same String:

(:div class=code :)

  String stringOne = "A long integer: ";

  // using concat() to add a long variable to a string:
  stringOne += 123456789;

or

  String stringOne = "A long integer: ";

  // using concat() to add a long variable to a string:
  stringTwo.concat(123456789);
 

In both cases, stringOne equals "A long integer: 123456789".

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(:div class=BOM :)

Hardware Required

No external hardware is required. (:divend:)

Like the + operator, this

Circuit

(:div class=circuit :) There is no circuit for this example. (:divend:)

Code

(:div class=code :)

(:source