Arduino serial input prompt not repeat - input

Question

Following Arduino code purpose is to get a char from user.
Currently problem of continuously prints the prompt.
I want it to print the prompt only once, then wait for the input.
Thanks.
char kbChar;
void setup() {Serial.begin(9600);}
void loop() {inChar();}
void inChar(){
Serial.println("Type something!");
if(Serial.available()){
kbChar = Serial.read();
Serial.println(kbChar);
}
}

Answer 1

Note the following attributes about the setup() and loop() functions in an Arduino sketch:
setup() is called once, at the very beginning
loop() is called repeatedly, forever, after setup() finishes.
Therefore, you are continuing to print the prompt, because your prompt call Serial.println("Type something!"); is inside of inChar(), which is called in the loop() function body. To make the prompt output only once, put it in the setup() function body.
char kbChar;
void setup() {
Serial.begin(9600);
while (!Serial) ; // Wait for Serial port to open.
Serial.println("Type something!");
}
void loop() {
inChar();
}
void inChar(){
if(Serial.available()){
kbChar = Serial.read();
Serial.println(kbChar);
}
}