String Comparison Operators

The String comparison operators

==

!=

>

<

>=

<=

equals()

equalsIgnoreCase()

The operator

==

equals()

Copy
1if (stringOne.equals(stringTwo)) {

is identical to

Copy
1if (stringOne ==stringTwo) {

The

>

<

"a" < "b"

"1" < "2"

"999" > "1000"

Caution: String comparison operators can be confusing when you're comparing numeric strings, because the numbers are treated as strings and not as numbers. If you need to compare numbers, compare them as ints, floats, or longs, and not as Strings.

Hardware Required

• Arduino Board

Circuit

There is no circuit for this example, though your board must be connected to your computer via USB and the serial monitor window of the Arduino Software (IDE) should be open.

Code

Learn more

You can find more basic tutorials in the built-in examples section.

You can also explore the language reference, a detailed collection of the Arduino programming language.

Last revision 2015/08/11 by SM