!=
Description
Compares the variable on the left with the value or variable on the right of the operator. Returns true when the two operands are not equal. Please note that you may compare variables of different data types, but that could generate unpredictable results, it is therefore recommended to compare variables of the same data type including the signed/unsigned type.
Syntax
x != y; // is false if x is equal to y and it is true if x is not equal to y
Parameter Values
- x: variable. Allowed data types: int, float, double, byte, short, long.
- y: variable or constant. Allowed data types: int, float, double, byte, short, long.
Example Code
void setup() {
Serial.begin(9600);
int x = 1;
int y = 2;
if (x != y) // tests if x is not equal to y
Serial.println("x is NOT equal to y");
else
Serial.println("x is equal to y");
}
void loop() {
}
The result on Serial Monitor:
8
Serial.println("Hello World!");
Message (Enter to send message to 'Arduino Uno' on 'COM15')
New Line
9600 baud
x is NOT equal to y
See Also
- Language : == (equal to)
- Language : > (greater than)
- Language : >= (greater than or equal to)
- Language : < (less than)
- Language : ≤ (less than or equal to)
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