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

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

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Hardware Required

• Arduino Board

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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

String stringOne = "Hello String"; // using a constant String String stringOne = String('a'); // converting a constant char into a String String stringTwo = String("This is a string"); // converting a constant string into a String object String stringOne = String(stringTwo + " with more");// concatenating two strings String stringOne = String(13); // using a constant integer String stringOne = String(analogRead(0), DEC); // using an int and a base String stringOne = String(45, HEX); // using an int and a base (hexadecimal) String stringOne = String(255, BIN); // using an int and a base (binary) String stringOne = String(millis(), DEC); // using a long and a base

(:source lang=arduino tabwidth=4:)

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

Examples > Strings

• StringConstructors

The String object allows you to manipulate strings of text in a variety of useful ways. You can append characters to Strings, combine Strings through concatenation, get the length of a String, search and replace substrings, and more. This tutorial shows you how to initialize String objects.

All of these methods are valid ways to declare a String object. They all result in an object containing a string of characters that can be manipulated using any of the String methods. To see them in action, upload the code below onto an Arduino and open the Serial Monitor. You'll see the results of each declaration. Compare what's printed by each println() to the declaration above it.

There is no circuit for this example.

There is no circuit for this example.

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See Also:

• String object
• StringAdditionOperator
• StringIndexOf
• StringAppendOperator
• StringLengthTrim
• StringCaseChanges
• StringReplace
• StringCharacters
• StringStartsWithEndsWith
• StringComparisonOperators
• StringSubstring

Examples > Control Structures

String Object Constructors

The String object allows you to manipulate strings of text in a variety of useful ways. You can append characters to Strings, combine Strings through concatenation, get the length of a String, search and replace substrings, and more. This tutorial shows you how to initialize String objects.

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Hardware Required

No external hardware is required. (:divend:)

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String stringOne = "Hello String";                     // using a constant String
String stringOne =  String('a');                       // converting a constant char into a String
String stringTwo =  String("This is a string");        // converting a constant string into a String object
String stringOne =  String(stringTwo + " with more");  // concatenating two strings
String stringOne =  String(13);                        // using a constant integer
String stringOne =  String(analogRead(0), DEC);        // using an int and a base
String stringOne =  String(45, HEX);                   // using an int and a base (hexadecimal)
String stringOne =  String(255, BIN);                  // using an int and a base (binary)
String stringOne =  String(millis(), DEC);             // using a long and a base

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All of these methods are valid ways to declare a String object. They all result in an object containing a string of characters that can be manipulated using any of the String methods.

Circuit

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 There is no circuit for this example.

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Schematic:

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 There is no circuit for this example.

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Code

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