Serial Port Communication

Projects Programming
2

I put your code through the IDE's auto format tool, and edited out some of the whitespace.
Does this make it any clearer?

String inString = "";    

void setup() 
{
  Serial.begin(9600);
  Serial.println("Please enter the number of cars you have ");

  // Read serial input:
  while (Serial.available() >=0) {
    int inChar = Serial.read();
    if (isDigit(inChar)) {
      inString += (char)inChar; 
    }

    if (inChar == '\n') {          
      Serial.println(inString.toInt());
      inString = "";
      Serial.print("Please enter your age");
    }
  }

  while (Serial.available() >= 0) {
    int inChar = Serial.read();
    if (isDigit(inChar)) {
      inString += (char)inChar; 
    }
    if (inChar == '\n') {
      Serial.println(inString.toInt());
      inString = "";
      Serial.print("Please enter a random number");
    }
  }
}


void loop() 
{
}