'serial' was not declare in this scope

Using Arduino Programming Questions
1

I practice programming using Arduino Due.
Writing this code will result in an error" 'serial' was not declare in this scope".
What should I do?

void setup() {
serial.begin(9600);
}

void loop() {
'serial.println("Hello world");
delay(1000);
}

2

Don't forget that C++ is case sensitive. Try Serial instead.

3

These are commonly used Serial object related methods of Arduino Platform (taken from Arduino Reference Manual):

Serial.available()
Serial.begin()
Serial.end()
Serial.parseFloat()
Serial.parseInt()
Serial.print()
Serial.println()
Serial.read()
Serial.readBytes()
Serial.readBytesUntil()
Serial.readString()
Serial.write()

4

Another typo was that you left the ‘d’ off the word ‘declared’

C is unforgiving, but will let you know when you screw up!

5

Thank you!